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 gdbarch_float_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
359 case FT_DBL_PREC_FLOAT
:
360 type
= init_type (TYPE_CODE_FLT
,
361 gdbarch_double_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
362 0, "real*8", objfile
);
364 case FT_FLOAT_DECIMAL
:
365 type
= init_type (TYPE_CODE_FLT
,
366 gdbarch_double_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
367 0, "floating decimal", objfile
);
369 case FT_EXT_PREC_FLOAT
:
370 type
= init_type (TYPE_CODE_FLT
,
371 gdbarch_long_double_bit (current_gdbarch
)
373 0, "real*16", objfile
);
376 type
= init_type (TYPE_CODE_COMPLEX
,
377 2 * gdbarch_float_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
378 0, "complex*8", objfile
);
379 TYPE_TARGET_TYPE (type
) = builtin_type_f_real
;
381 case FT_DBL_PREC_COMPLEX
:
382 type
= init_type (TYPE_CODE_COMPLEX
,
383 2 * gdbarch_double_bit (current_gdbarch
)
385 0, "complex*16", objfile
);
386 TYPE_TARGET_TYPE (type
) = builtin_type_f_real_s8
;
388 case FT_EXT_PREC_COMPLEX
:
389 type
= init_type (TYPE_CODE_COMPLEX
,
390 2 * gdbarch_long_double_bit (current_gdbarch
)
392 0, "complex*32", objfile
);
393 TYPE_TARGET_TYPE (type
) = builtin_type_f_real_s16
;
396 /* FIXME: For now, if we are asked to produce a type not in this
397 language, create the equivalent of a C integer type with the
398 name "<?type?>". When all the dust settles from the type
399 reconstruction work, this should probably become an error. */
400 type
= init_type (TYPE_CODE_INT
,
401 gdbarch_int_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
402 0, "<?type?>", objfile
);
403 warning (_("internal error: no F77 fundamental type %d"), typeid);
410 /* Table of operators and their precedences for printing expressions. */
412 static const struct op_print f_op_print_tab
[] =
414 {"+", BINOP_ADD
, PREC_ADD
, 0},
415 {"+", UNOP_PLUS
, PREC_PREFIX
, 0},
416 {"-", BINOP_SUB
, PREC_ADD
, 0},
417 {"-", UNOP_NEG
, PREC_PREFIX
, 0},
418 {"*", BINOP_MUL
, PREC_MUL
, 0},
419 {"/", BINOP_DIV
, PREC_MUL
, 0},
420 {"DIV", BINOP_INTDIV
, PREC_MUL
, 0},
421 {"MOD", BINOP_REM
, PREC_MUL
, 0},
422 {"=", BINOP_ASSIGN
, PREC_ASSIGN
, 1},
423 {".OR.", BINOP_LOGICAL_OR
, PREC_LOGICAL_OR
, 0},
424 {".AND.", BINOP_LOGICAL_AND
, PREC_LOGICAL_AND
, 0},
425 {".NOT.", UNOP_LOGICAL_NOT
, PREC_PREFIX
, 0},
426 {".EQ.", BINOP_EQUAL
, PREC_EQUAL
, 0},
427 {".NE.", BINOP_NOTEQUAL
, PREC_EQUAL
, 0},
428 {".LE.", BINOP_LEQ
, PREC_ORDER
, 0},
429 {".GE.", BINOP_GEQ
, PREC_ORDER
, 0},
430 {".GT.", BINOP_GTR
, PREC_ORDER
, 0},
431 {".LT.", BINOP_LESS
, PREC_ORDER
, 0},
432 {"**", UNOP_IND
, PREC_PREFIX
, 0},
433 {"@", BINOP_REPEAT
, PREC_REPEAT
, 0},
437 enum f_primitive_types
{
438 f_primitive_type_character
,
439 f_primitive_type_logical
,
440 f_primitive_type_logical_s1
,
441 f_primitive_type_logical_s2
,
442 f_primitive_type_integer
,
443 f_primitive_type_integer_s2
,
444 f_primitive_type_real
,
445 f_primitive_type_real_s8
,
446 f_primitive_type_real_s16
,
447 f_primitive_type_complex_s8
,
448 f_primitive_type_complex_s16
,
449 f_primitive_type_void
,
454 f_language_arch_info (struct gdbarch
*gdbarch
,
455 struct language_arch_info
*lai
)
457 lai
->string_char_type
= builtin_type_f_character
;
458 lai
->primitive_type_vector
459 = GDBARCH_OBSTACK_CALLOC (gdbarch
, nr_f_primitive_types
+ 1,
462 lai
->primitive_type_vector
[f_primitive_type_character
]
463 = builtin_type_f_character
;
464 lai
->primitive_type_vector
[f_primitive_type_logical
]
465 = builtin_type_f_logical
;
466 lai
->primitive_type_vector
[f_primitive_type_logical_s1
]
467 = builtin_type_f_logical_s1
;
468 lai
->primitive_type_vector
[f_primitive_type_logical_s2
]
469 = builtin_type_f_logical_s2
;
470 lai
->primitive_type_vector
[f_primitive_type_real
]
471 = builtin_type_f_real
;
472 lai
->primitive_type_vector
[f_primitive_type_real_s8
]
473 = builtin_type_f_real_s8
;
474 lai
->primitive_type_vector
[f_primitive_type_real_s16
]
475 = builtin_type_f_real_s16
;
476 lai
->primitive_type_vector
[f_primitive_type_complex_s8
]
477 = builtin_type_f_complex_s8
;
478 lai
->primitive_type_vector
[f_primitive_type_complex_s16
]
479 = builtin_type_f_complex_s16
;
480 lai
->primitive_type_vector
[f_primitive_type_void
]
481 = builtin_type_f_void
;
484 /* This is declared in c-lang.h but it is silly to import that file for what
485 is already just a hack. */
486 extern int c_value_print (struct value
*, struct ui_file
*, int,
487 enum val_prettyprint
);
489 const struct language_defn f_language_defn
=
498 &exp_descriptor_standard
,
499 f_parse
, /* parser */
500 f_error
, /* parser error function */
502 f_printchar
, /* Print character constant */
503 f_printstr
, /* function to print string constant */
504 f_emit_char
, /* Function to print a single character */
505 f_create_fundamental_type
, /* Create fundamental type in this language */
506 f_print_type
, /* Print a type using appropriate syntax */
507 f_val_print
, /* Print a value using appropriate syntax */
508 c_value_print
, /* FIXME */
509 NULL
, /* Language specific skip_trampoline */
510 value_of_this
, /* value_of_this */
511 basic_lookup_symbol_nonlocal
, /* lookup_symbol_nonlocal */
512 basic_lookup_transparent_type
,/* lookup_transparent_type */
513 NULL
, /* Language specific symbol demangler */
514 NULL
, /* Language specific class_name_from_physname */
515 f_op_print_tab
, /* expression operators for printing */
516 0, /* arrays are first-class (not c-style) */
517 1, /* String lower bound */
519 default_word_break_characters
,
520 f_language_arch_info
,
521 default_print_array_index
,
526 build_fortran_types (void)
528 builtin_type_f_void
=
529 init_type (TYPE_CODE_VOID
, 1,
531 "VOID", (struct objfile
*) NULL
);
533 builtin_type_f_character
=
534 init_type (TYPE_CODE_INT
, TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
536 "character", (struct objfile
*) NULL
);
538 builtin_type_f_logical_s1
=
539 init_type (TYPE_CODE_BOOL
, TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
541 "logical*1", (struct objfile
*) NULL
);
543 builtin_type_f_integer_s2
=
544 init_type (TYPE_CODE_INT
,
545 gdbarch_short_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
546 0, "integer*2", (struct objfile
*) NULL
);
548 builtin_type_f_logical_s2
=
549 init_type (TYPE_CODE_BOOL
,
550 gdbarch_short_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
551 TYPE_FLAG_UNSIGNED
, "logical*2", (struct objfile
*) NULL
);
553 builtin_type_f_integer
=
554 init_type (TYPE_CODE_INT
,
555 gdbarch_int_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
556 0, "integer", (struct objfile
*) NULL
);
558 builtin_type_f_logical
=
559 init_type (TYPE_CODE_BOOL
,
560 gdbarch_int_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
561 TYPE_FLAG_UNSIGNED
, "logical*4", (struct objfile
*) NULL
);
563 builtin_type_f_real
=
564 init_type (TYPE_CODE_FLT
,
565 gdbarch_float_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
567 "real", (struct objfile
*) NULL
);
569 builtin_type_f_real_s8
=
570 init_type (TYPE_CODE_FLT
,
571 gdbarch_double_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
573 "real*8", (struct objfile
*) NULL
);
575 builtin_type_f_real_s16
=
576 init_type (TYPE_CODE_FLT
,
577 gdbarch_long_double_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
579 "real*16", (struct objfile
*) NULL
);
581 builtin_type_f_complex_s8
=
582 init_type (TYPE_CODE_COMPLEX
,
583 2 * gdbarch_float_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
585 "complex*8", (struct objfile
*) NULL
);
586 TYPE_TARGET_TYPE (builtin_type_f_complex_s8
) = builtin_type_f_real
;
588 builtin_type_f_complex_s16
=
589 init_type (TYPE_CODE_COMPLEX
,
590 2 * gdbarch_double_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
592 "complex*16", (struct objfile
*) NULL
);
593 TYPE_TARGET_TYPE (builtin_type_f_complex_s16
) = builtin_type_f_real_s8
;
595 /* We have a new size == 4 double floats for the
596 complex*32 data type */
598 builtin_type_f_complex_s32
=
599 init_type (TYPE_CODE_COMPLEX
,
600 2 * gdbarch_long_double_bit (current_gdbarch
) / TARGET_CHAR_BIT
,
602 "complex*32", (struct objfile
*) NULL
);
603 TYPE_TARGET_TYPE (builtin_type_f_complex_s32
) = builtin_type_f_real_s16
;
607 _initialize_f_language (void)
609 build_fortran_types ();
611 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_character
);
612 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_logical
);
613 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_logical_s1
);
614 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_logical_s2
);
615 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_integer
);
616 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_integer_s2
);
617 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_real
);
618 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_real_s8
);
619 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_real_s16
);
620 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_complex_s8
);
621 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_complex_s16
);
622 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_complex_s32
);
623 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_void
);
624 DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_string
);
625 deprecated_register_gdbarch_swap (NULL
, 0, build_fortran_types
);
627 builtin_type_string
=
628 init_type (TYPE_CODE_STRING
, TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
630 "character string", (struct objfile
*) NULL
);
632 add_language (&f_language_defn
);
637 allocate_saved_bf_node (void)
641 new = (SAVED_BF_PTR
) xmalloc (sizeof (SAVED_BF
));
645 static SAVED_FUNCTION
*
646 allocate_saved_function_node (void)
650 new = (SAVED_FUNCTION
*) xmalloc (sizeof (SAVED_FUNCTION
));
654 static SAVED_F77_COMMON_PTR
655 allocate_saved_f77_common_node (void)
657 SAVED_F77_COMMON_PTR
new;
659 new = (SAVED_F77_COMMON_PTR
) xmalloc (sizeof (SAVED_F77_COMMON
));
663 static COMMON_ENTRY_PTR
664 allocate_common_entry_node (void)
666 COMMON_ENTRY_PTR
new;
668 new = (COMMON_ENTRY_PTR
) xmalloc (sizeof (COMMON_ENTRY
));
673 SAVED_F77_COMMON_PTR head_common_list
= NULL
; /* Ptr to 1st saved COMMON */
674 SAVED_F77_COMMON_PTR tail_common_list
= NULL
; /* Ptr to last saved COMMON */
675 SAVED_F77_COMMON_PTR current_common
= NULL
; /* Ptr to current COMMON */
678 static SAVED_BF_PTR saved_bf_list
= NULL
; /* Ptr to (.bf,function)
680 static SAVED_BF_PTR saved_bf_list_end
= NULL
; /* Ptr to above list's end */
681 static SAVED_BF_PTR current_head_bf_list
= NULL
; /* Current head of above list
684 static SAVED_BF_PTR tmp_bf_ptr
; /* Generic temporary for use
687 /* The following function simply enters a given common block onto
688 the global common block chain */
691 add_common_block (char *name
, CORE_ADDR offset
, int secnum
, char *func_stab
)
693 SAVED_F77_COMMON_PTR tmp
;
694 char *c
, *local_copy_func_stab
;
696 /* If the COMMON block we are trying to add has a blank
697 name (i.e. "#BLNK_COM") then we set it to __BLANK
698 because the darn "#" character makes GDB's input
702 if (strcmp (name
, BLANK_COMMON_NAME_ORIGINAL
) == 0
703 || strcmp (name
, BLANK_COMMON_NAME_MF77
) == 0)
707 name
= alloca (strlen (BLANK_COMMON_NAME_LOCAL
) + 1);
708 strcpy (name
, BLANK_COMMON_NAME_LOCAL
);
711 tmp
= allocate_saved_f77_common_node ();
713 local_copy_func_stab
= xmalloc (strlen (func_stab
) + 1);
714 strcpy (local_copy_func_stab
, func_stab
);
716 tmp
->name
= xmalloc (strlen (name
) + 1);
718 /* local_copy_func_stab is a stabstring, let us first extract the
719 function name from the stab by NULLing out the ':' character. */
723 c
= strchr (local_copy_func_stab
, ':');
728 error (_("Malformed function STAB found in add_common_block()"));
731 tmp
->owning_function
= xmalloc (strlen (local_copy_func_stab
) + 1);
733 strcpy (tmp
->owning_function
, local_copy_func_stab
);
735 strcpy (tmp
->name
, name
);
736 tmp
->offset
= offset
;
739 tmp
->secnum
= secnum
;
741 current_common
= tmp
;
743 if (head_common_list
== NULL
)
745 head_common_list
= tail_common_list
= tmp
;
749 tail_common_list
->next
= tmp
;
750 tail_common_list
= tmp
;
755 /* The following function simply enters a given common entry onto
756 the "current_common" block that has been saved away. */
760 add_common_entry (struct symbol
*entry_sym_ptr
)
762 COMMON_ENTRY_PTR tmp
;
766 /* The order of this list is important, since
767 we expect the entries to appear in decl.
768 order when we later issue "info common" calls */
770 tmp
= allocate_common_entry_node ();
773 tmp
->symbol
= entry_sym_ptr
;
775 if (current_common
== NULL
)
776 error (_("Attempt to add COMMON entry with no block open!"));
779 if (current_common
->entries
== NULL
)
781 current_common
->entries
= tmp
;
782 current_common
->end_of_entries
= tmp
;
786 current_common
->end_of_entries
->next
= tmp
;
787 current_common
->end_of_entries
= tmp
;
793 /* This routine finds the first encountred COMMON block named "name" */
796 static SAVED_F77_COMMON_PTR
797 find_first_common_named (char *name
)
800 SAVED_F77_COMMON_PTR tmp
;
802 tmp
= head_common_list
;
806 if (strcmp (tmp
->name
, name
) == 0)
815 /* This routine finds the first encountred COMMON block named "name"
816 that belongs to function funcname */
819 find_common_for_function (char *name
, char *funcname
)
822 SAVED_F77_COMMON_PTR tmp
;
824 tmp
= head_common_list
;
828 if (DEPRECATED_STREQ (tmp
->name
, name
)
829 && DEPRECATED_STREQ (tmp
->owning_function
, funcname
))
840 /* The following function is called to patch up the offsets
841 for the statics contained in the COMMON block named
845 patch_common_entries (SAVED_F77_COMMON_PTR blk
, CORE_ADDR offset
, int secnum
)
847 COMMON_ENTRY_PTR entry
;
849 blk
->offset
= offset
; /* Keep this around for future use. */
851 entry
= blk
->entries
;
853 while (entry
!= NULL
)
855 SYMBOL_VALUE (entry
->symbol
) += offset
;
856 SYMBOL_SECTION (entry
->symbol
) = secnum
;
860 blk
->secnum
= secnum
;
863 /* Patch all commons named "name" that need patching.Since COMMON
864 blocks occur with relative infrequency, we simply do a linear scan on
865 the name. Eventually, the best way to do this will be a
866 hashed-lookup. Secnum is the section number for the .bss section
867 (which is where common data lives). */
870 patch_all_commons_by_name (char *name
, CORE_ADDR offset
, int secnum
)
873 SAVED_F77_COMMON_PTR tmp
;
875 /* For blank common blocks, change the canonical reprsentation
878 if (strcmp (name
, BLANK_COMMON_NAME_ORIGINAL
) == 0
879 || strcmp (name
, BLANK_COMMON_NAME_MF77
) == 0)
882 name
= alloca (strlen (BLANK_COMMON_NAME_LOCAL
) + 1);
883 strcpy (name
, BLANK_COMMON_NAME_LOCAL
);
886 tmp
= head_common_list
;
890 if (COMMON_NEEDS_PATCHING (tmp
))
891 if (strcmp (tmp
->name
, name
) == 0)
892 patch_common_entries (tmp
, offset
, secnum
);
899 /* This macro adds the symbol-number for the start of the function
900 (the symbol number of the .bf) referenced by symnum_fcn to a
901 list. This list, in reality should be a FIFO queue but since
902 #line pragmas sometimes cause line ranges to get messed up
903 we simply create a linear list. This list can then be searched
904 first by a queueing algorithm and upon failure fall back to
908 #define ADD_BF_SYMNUM(bf_sym,fcn_sym) \
910 if (saved_bf_list == NULL) \
912 tmp_bf_ptr = allocate_saved_bf_node(); \
914 tmp_bf_ptr->symnum_bf = (bf_sym); \
915 tmp_bf_ptr->symnum_fcn = (fcn_sym); \
916 tmp_bf_ptr->next = NULL; \
918 current_head_bf_list = saved_bf_list = tmp_bf_ptr; \
919 saved_bf_list_end = tmp_bf_ptr; \
923 tmp_bf_ptr = allocate_saved_bf_node(); \
925 tmp_bf_ptr->symnum_bf = (bf_sym); \
926 tmp_bf_ptr->symnum_fcn = (fcn_sym); \
927 tmp_bf_ptr->next = NULL; \
929 saved_bf_list_end->next = tmp_bf_ptr; \
930 saved_bf_list_end = tmp_bf_ptr; \
934 /* This function frees the entire (.bf,function) list */
941 SAVED_BF_PTR tmp
= saved_bf_list
;
942 SAVED_BF_PTR next
= NULL
;
950 saved_bf_list
= NULL
;
954 int global_remote_debug
;
959 get_bf_for_fcn (long the_function
)
964 /* First use a simple queuing algorithm (i.e. look and see if the
965 item at the head of the queue is the one you want) */
967 if (saved_bf_list
== NULL
)
968 internal_error (__FILE__
, __LINE__
,
969 _("cannot get .bf node off empty list"));
971 if (current_head_bf_list
!= NULL
)
972 if (current_head_bf_list
->symnum_fcn
== the_function
)
974 if (global_remote_debug
)
975 fprintf_unfiltered (gdb_stderr
, "*");
977 tmp
= current_head_bf_list
;
978 current_head_bf_list
= current_head_bf_list
->next
;
979 return (tmp
->symnum_bf
);
982 /* If the above did not work (probably because #line directives were
983 used in the sourcefile and they messed up our internal tables) we now do
984 the ugly linear scan */
986 if (global_remote_debug
)
987 fprintf_unfiltered (gdb_stderr
, "\ndefaulting to linear scan\n");
994 if (tmp
->symnum_fcn
== the_function
)
996 if (global_remote_debug
)
997 fprintf_unfiltered (gdb_stderr
, "Found in %d probes\n", nprobes
);
998 current_head_bf_list
= tmp
->next
;
999 return (tmp
->symnum_bf
);
1007 static SAVED_FUNCTION_PTR saved_function_list
= NULL
;
1008 static SAVED_FUNCTION_PTR saved_function_list_end
= NULL
;
1011 clear_function_list (void)
1013 SAVED_FUNCTION_PTR tmp
= saved_function_list
;
1014 SAVED_FUNCTION_PTR next
= NULL
;
1023 saved_function_list
= NULL
;