1 /* Fortran language support routines for GDB, the GNU debugger.
2 Copyright 1993, 1994, 1996 Free Software Foundation, Inc.
3 Contributed by Motorola. Adapted from the C parser by Farooq Butt
4 (fmbutt@engage.sps.mot.com).
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
24 #include "gdb_string.h"
27 #include "expression.h"
28 #include "parser-defs.h"
32 /* The built-in types of F77. FIXME: integer*4 is missing, plain
33 logical is missing (builtin_type_logical is logical*4). */
35 struct type
*builtin_type_f_character
;
36 struct type
*builtin_type_f_logical
;
37 struct type
*builtin_type_f_logical_s1
;
38 struct type
*builtin_type_f_logical_s2
;
39 struct type
*builtin_type_f_integer
;
40 struct type
*builtin_type_f_integer_s2
;
41 struct type
*builtin_type_f_real
;
42 struct type
*builtin_type_f_real_s8
;
43 struct type
*builtin_type_f_real_s16
;
44 struct type
*builtin_type_f_complex_s8
;
45 struct type
*builtin_type_f_complex_s16
;
46 struct type
*builtin_type_f_complex_s32
;
47 struct type
*builtin_type_f_void
;
49 /* Following is dubious stuff that had been in the xcoff reader. */
53 long line_offset
; /* Line offset for function */
54 struct saved_fcn
*next
;
58 struct saved_bf_symnum
60 long symnum_fcn
; /* Symnum of function (i.e. .function directive) */
61 long symnum_bf
; /* Symnum of .bf for this function */
62 struct saved_bf_symnum
*next
;
65 typedef struct saved_fcn SAVED_FUNCTION
, *SAVED_FUNCTION_PTR
;
66 typedef struct saved_bf_symnum SAVED_BF
, *SAVED_BF_PTR
;
70 extern void _initialize_f_language
PARAMS ((void));
72 static void clear_function_list
PARAMS ((void));
73 static long get_bf_for_fcn
PARAMS ((long));
74 static void clear_bf_list
PARAMS ((void));
75 static void patch_all_commons_by_name
PARAMS ((char *, CORE_ADDR
, int));
76 static SAVED_F77_COMMON_PTR find_first_common_named
PARAMS ((char *));
77 static void add_common_entry
PARAMS ((struct symbol
*));
78 static void add_common_block
PARAMS ((char *, CORE_ADDR
, int, char *));
79 static SAVED_FUNCTION
*allocate_saved_function_node
PARAMS ((void));
80 static SAVED_BF_PTR allocate_saved_bf_node
PARAMS ((void));
81 static COMMON_ENTRY_PTR allocate_common_entry_node
PARAMS ((void));
82 static SAVED_F77_COMMON_PTR allocate_saved_f77_common_node
PARAMS ((void));
83 static void patch_common_entries
PARAMS ((SAVED_F77_COMMON_PTR
, CORE_ADDR
, int));
86 static struct type
*f_create_fundamental_type
PARAMS ((struct objfile
*, int));
87 static void f_printstr
PARAMS ((GDB_FILE
* stream
, char *string
, unsigned int length
, int width
, int force_ellipses
));
88 static void f_printchar
PARAMS ((int c
, GDB_FILE
* stream
));
89 static void f_emit_char
PARAMS ((int c
, GDB_FILE
* stream
, int quoter
));
91 /* Print the character C on STREAM as part of the contents of a literal
92 string whose delimiter is QUOTER. Note that that format for printing
93 characters and strings is language specific.
94 FIXME: This is a copy of the same function from c-exp.y. It should
95 be replaced with a true F77 version. */
98 f_emit_char (c
, stream
, quoter
)
103 c
&= 0xFF; /* Avoid sign bit follies */
105 if (PRINT_LITERAL_FORM (c
))
107 if (c
== '\\' || c
== quoter
)
108 fputs_filtered ("\\", stream
);
109 fprintf_filtered (stream
, "%c", c
);
116 fputs_filtered ("\\n", stream
);
119 fputs_filtered ("\\b", stream
);
122 fputs_filtered ("\\t", stream
);
125 fputs_filtered ("\\f", stream
);
128 fputs_filtered ("\\r", stream
);
131 fputs_filtered ("\\e", stream
);
134 fputs_filtered ("\\a", stream
);
137 fprintf_filtered (stream
, "\\%.3o", (unsigned int) c
);
143 /* FIXME: This is a copy of the same function from c-exp.y. It should
144 be replaced with a true F77version. */
147 f_printchar (c
, 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 (stream
, string
, length
, width
, force_ellipses
)
171 register unsigned int i
;
172 unsigned int things_printed
= 0;
175 extern int inspect_it
;
176 extern int repeat_count_threshold
;
177 extern int print_max
;
181 fputs_filtered ("''", gdb_stdout
);
185 for (i
= 0; i
< length
&& things_printed
< print_max
; ++i
)
187 /* Position of the character we are examining
188 to see whether it is repeated. */
190 /* Number of repetitions we have detected so far. */
197 fputs_filtered (", ", stream
);
203 while (rep1
< length
&& string
[rep1
] == string
[i
])
209 if (reps
> repeat_count_threshold
)
214 fputs_filtered ("\\', ", stream
);
216 fputs_filtered ("', ", stream
);
219 f_printchar (string
[i
], stream
);
220 fprintf_filtered (stream
, " <repeats %u times>", reps
);
222 things_printed
+= repeat_count_threshold
;
230 fputs_filtered ("\\'", stream
);
232 fputs_filtered ("'", stream
);
235 LA_EMIT_CHAR (string
[i
], stream
, '"');
240 /* Terminate the quotes if necessary. */
244 fputs_filtered ("\\'", stream
);
246 fputs_filtered ("'", stream
);
249 if (force_ellipses
|| i
< length
)
250 fputs_filtered ("...", stream
);
253 /* FIXME: This is a copy of c_create_fundamental_type(), before
254 all the non-C types were stripped from it. Needs to be fixed
255 by an experienced F77 programmer. */
258 f_create_fundamental_type (objfile
, typeid)
259 struct objfile
*objfile
;
262 register struct type
*type
= NULL
;
267 type
= init_type (TYPE_CODE_VOID
,
268 TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
272 type
= init_type (TYPE_CODE_BOOL
,
273 TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
274 TYPE_FLAG_UNSIGNED
, "boolean", objfile
);
277 type
= init_type (TYPE_CODE_STRING
,
278 TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
279 0, "string", objfile
);
282 type
= init_type (TYPE_CODE_INT
,
283 TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
284 0, "character", objfile
);
287 type
= init_type (TYPE_CODE_INT
,
288 TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
289 0, "integer*1", objfile
);
291 case FT_UNSIGNED_CHAR
:
292 type
= init_type (TYPE_CODE_BOOL
,
293 TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
294 TYPE_FLAG_UNSIGNED
, "logical*1", objfile
);
297 type
= init_type (TYPE_CODE_INT
,
298 TARGET_SHORT_BIT
/ TARGET_CHAR_BIT
,
299 0, "integer*2", objfile
);
301 case FT_SIGNED_SHORT
:
302 type
= init_type (TYPE_CODE_INT
,
303 TARGET_SHORT_BIT
/ TARGET_CHAR_BIT
,
304 0, "short", objfile
); /* FIXME-fnf */
306 case FT_UNSIGNED_SHORT
:
307 type
= init_type (TYPE_CODE_BOOL
,
308 TARGET_SHORT_BIT
/ TARGET_CHAR_BIT
,
309 TYPE_FLAG_UNSIGNED
, "logical*2", objfile
);
312 type
= init_type (TYPE_CODE_INT
,
313 TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
314 0, "integer*4", objfile
);
316 case FT_SIGNED_INTEGER
:
317 type
= init_type (TYPE_CODE_INT
,
318 TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
319 0, "integer", objfile
); /* FIXME -fnf */
321 case FT_UNSIGNED_INTEGER
:
322 type
= init_type (TYPE_CODE_BOOL
,
323 TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
324 TYPE_FLAG_UNSIGNED
, "logical*4", objfile
);
326 case FT_FIXED_DECIMAL
:
327 type
= init_type (TYPE_CODE_INT
,
328 TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
329 0, "fixed decimal", objfile
);
332 type
= init_type (TYPE_CODE_INT
,
333 TARGET_LONG_BIT
/ TARGET_CHAR_BIT
,
337 type
= init_type (TYPE_CODE_INT
,
338 TARGET_LONG_BIT
/ TARGET_CHAR_BIT
,
339 0, "long", objfile
); /* FIXME -fnf */
341 case FT_UNSIGNED_LONG
:
342 type
= init_type (TYPE_CODE_INT
,
343 TARGET_LONG_BIT
/ TARGET_CHAR_BIT
,
344 TYPE_FLAG_UNSIGNED
, "unsigned long", objfile
);
347 type
= init_type (TYPE_CODE_INT
,
348 TARGET_LONG_LONG_BIT
/ TARGET_CHAR_BIT
,
349 0, "long long", objfile
);
351 case FT_SIGNED_LONG_LONG
:
352 type
= init_type (TYPE_CODE_INT
,
353 TARGET_LONG_LONG_BIT
/ TARGET_CHAR_BIT
,
354 0, "signed long long", objfile
);
356 case FT_UNSIGNED_LONG_LONG
:
357 type
= init_type (TYPE_CODE_INT
,
358 TARGET_LONG_LONG_BIT
/ TARGET_CHAR_BIT
,
359 TYPE_FLAG_UNSIGNED
, "unsigned long long", objfile
);
362 type
= init_type (TYPE_CODE_FLT
,
363 TARGET_FLOAT_BIT
/ TARGET_CHAR_BIT
,
366 case FT_DBL_PREC_FLOAT
:
367 type
= init_type (TYPE_CODE_FLT
,
368 TARGET_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
369 0, "real*8", objfile
);
371 case FT_FLOAT_DECIMAL
:
372 type
= init_type (TYPE_CODE_FLT
,
373 TARGET_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
374 0, "floating decimal", objfile
);
376 case FT_EXT_PREC_FLOAT
:
377 type
= init_type (TYPE_CODE_FLT
,
378 TARGET_LONG_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
379 0, "real*16", objfile
);
382 type
= init_type (TYPE_CODE_COMPLEX
,
383 2 * TARGET_FLOAT_BIT
/ TARGET_CHAR_BIT
,
384 0, "complex*8", objfile
);
385 TYPE_TARGET_TYPE (type
) = builtin_type_f_real
;
387 case FT_DBL_PREC_COMPLEX
:
388 type
= init_type (TYPE_CODE_COMPLEX
,
389 2 * TARGET_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
390 0, "complex*16", objfile
);
391 TYPE_TARGET_TYPE (type
) = builtin_type_f_real_s8
;
393 case FT_EXT_PREC_COMPLEX
:
394 type
= init_type (TYPE_CODE_COMPLEX
,
395 2 * TARGET_LONG_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
396 0, "complex*32", objfile
);
397 TYPE_TARGET_TYPE (type
) = builtin_type_f_real_s16
;
400 /* FIXME: For now, if we are asked to produce a type not in this
401 language, create the equivalent of a C integer type with the
402 name "<?type?>". When all the dust settles from the type
403 reconstruction work, this should probably become an error. */
404 type
= init_type (TYPE_CODE_INT
,
405 TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
406 0, "<?type?>", objfile
);
407 warning ("internal error: no F77 fundamental type %d", typeid);
414 /* Table of operators and their precedences for printing expressions. */
416 static const struct op_print f_op_print_tab
[] =
418 {"+", BINOP_ADD
, PREC_ADD
, 0},
419 {"+", UNOP_PLUS
, PREC_PREFIX
, 0},
420 {"-", BINOP_SUB
, PREC_ADD
, 0},
421 {"-", UNOP_NEG
, PREC_PREFIX
, 0},
422 {"*", BINOP_MUL
, PREC_MUL
, 0},
423 {"/", BINOP_DIV
, PREC_MUL
, 0},
424 {"DIV", BINOP_INTDIV
, PREC_MUL
, 0},
425 {"MOD", BINOP_REM
, PREC_MUL
, 0},
426 {"=", BINOP_ASSIGN
, PREC_ASSIGN
, 1},
427 {".OR.", BINOP_LOGICAL_OR
, PREC_LOGICAL_OR
, 0},
428 {".AND.", BINOP_LOGICAL_AND
, PREC_LOGICAL_AND
, 0},
429 {".NOT.", UNOP_LOGICAL_NOT
, PREC_PREFIX
, 0},
430 {".EQ.", BINOP_EQUAL
, PREC_EQUAL
, 0},
431 {".NE.", BINOP_NOTEQUAL
, PREC_EQUAL
, 0},
432 {".LE.", BINOP_LEQ
, PREC_ORDER
, 0},
433 {".GE.", BINOP_GEQ
, PREC_ORDER
, 0},
434 {".GT.", BINOP_GTR
, PREC_ORDER
, 0},
435 {".LT.", BINOP_LESS
, PREC_ORDER
, 0},
436 {"**", UNOP_IND
, PREC_PREFIX
, 0},
437 {"@", BINOP_REPEAT
, PREC_REPEAT
, 0},
441 struct type
**CONST_PTR (f_builtin_types
[]) =
443 &builtin_type_f_character
,
444 &builtin_type_f_logical
,
445 &builtin_type_f_logical_s1
,
446 &builtin_type_f_logical_s2
,
447 &builtin_type_f_integer
,
448 &builtin_type_f_integer_s2
,
449 &builtin_type_f_real
,
450 &builtin_type_f_real_s8
,
451 &builtin_type_f_real_s16
,
452 &builtin_type_f_complex_s8
,
453 &builtin_type_f_complex_s16
,
455 &builtin_type_f_complex_s32
,
457 &builtin_type_f_void
,
461 /* This is declared in c-lang.h but it is silly to import that file for what
462 is already just a hack. */
464 c_value_print
PARAMS ((struct value
*, GDB_FILE
*, int, enum val_prettyprint
));
466 const struct language_defn f_language_defn
=
473 f_parse
, /* parser */
474 f_error
, /* parser error function */
475 evaluate_subexp_standard
,
476 f_printchar
, /* Print character constant */
477 f_printstr
, /* function to print string constant */
478 f_emit_char
, /* Function to print a single character */
479 f_create_fundamental_type
, /* Create fundamental type in this language */
480 f_print_type
, /* Print a type using appropriate syntax */
481 f_val_print
, /* Print a value using appropriate syntax */
482 c_value_print
, /* FIXME */
483 {"", "", "", ""}, /* Binary format info */
484 {"0%o", "0", "o", ""}, /* Octal format info */
485 {"%d", "", "d", ""}, /* Decimal format info */
486 {"0x%x", "0x", "x", ""}, /* Hex format info */
487 f_op_print_tab
, /* expression operators for printing */
488 0, /* arrays are first-class (not c-style) */
489 1, /* String lower bound */
490 &builtin_type_f_character
, /* Type of string elements */
495 _initialize_f_language ()
497 builtin_type_f_void
=
498 init_type (TYPE_CODE_VOID
, 1,
500 "VOID", (struct objfile
*) NULL
);
502 builtin_type_f_character
=
503 init_type (TYPE_CODE_INT
, TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
505 "character", (struct objfile
*) NULL
);
507 builtin_type_f_logical_s1
=
508 init_type (TYPE_CODE_BOOL
, TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
510 "logical*1", (struct objfile
*) NULL
);
512 builtin_type_f_integer_s2
=
513 init_type (TYPE_CODE_INT
, TARGET_SHORT_BIT
/ TARGET_CHAR_BIT
,
515 "integer*2", (struct objfile
*) NULL
);
517 builtin_type_f_logical_s2
=
518 init_type (TYPE_CODE_BOOL
, TARGET_SHORT_BIT
/ TARGET_CHAR_BIT
,
520 "logical*2", (struct objfile
*) NULL
);
522 builtin_type_f_integer
=
523 init_type (TYPE_CODE_INT
, TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
525 "integer", (struct objfile
*) NULL
);
527 builtin_type_f_logical
=
528 init_type (TYPE_CODE_BOOL
, TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
530 "logical*4", (struct objfile
*) NULL
);
532 builtin_type_f_real
=
533 init_type (TYPE_CODE_FLT
, TARGET_FLOAT_BIT
/ TARGET_CHAR_BIT
,
535 "real", (struct objfile
*) NULL
);
537 builtin_type_f_real_s8
=
538 init_type (TYPE_CODE_FLT
, TARGET_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
540 "real*8", (struct objfile
*) NULL
);
542 builtin_type_f_real_s16
=
543 init_type (TYPE_CODE_FLT
, TARGET_LONG_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
545 "real*16", (struct objfile
*) NULL
);
547 builtin_type_f_complex_s8
=
548 init_type (TYPE_CODE_COMPLEX
, 2 * TARGET_FLOAT_BIT
/ TARGET_CHAR_BIT
,
550 "complex*8", (struct objfile
*) NULL
);
551 TYPE_TARGET_TYPE (builtin_type_f_complex_s8
) = builtin_type_f_real
;
553 builtin_type_f_complex_s16
=
554 init_type (TYPE_CODE_COMPLEX
, 2 * TARGET_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
556 "complex*16", (struct objfile
*) NULL
);
557 TYPE_TARGET_TYPE (builtin_type_f_complex_s16
) = builtin_type_f_real_s8
;
559 /* We have a new size == 4 double floats for the
560 complex*32 data type */
562 builtin_type_f_complex_s32
=
563 init_type (TYPE_CODE_COMPLEX
, 2 * TARGET_LONG_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
565 "complex*32", (struct objfile
*) NULL
);
566 TYPE_TARGET_TYPE (builtin_type_f_complex_s32
) = builtin_type_f_real_s16
;
568 builtin_type_string
=
569 init_type (TYPE_CODE_STRING
, TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
571 "character string", (struct objfile
*) NULL
);
573 add_language (&f_language_defn
);
578 allocate_saved_bf_node ()
582 new = (SAVED_BF_PTR
) xmalloc (sizeof (SAVED_BF
));
586 static SAVED_FUNCTION
*
587 allocate_saved_function_node ()
591 new = (SAVED_FUNCTION
*) xmalloc (sizeof (SAVED_FUNCTION
));
595 static SAVED_F77_COMMON_PTR
596 allocate_saved_f77_common_node ()
598 SAVED_F77_COMMON_PTR
new;
600 new = (SAVED_F77_COMMON_PTR
) xmalloc (sizeof (SAVED_F77_COMMON
));
604 static COMMON_ENTRY_PTR
605 allocate_common_entry_node ()
607 COMMON_ENTRY_PTR
new;
609 new = (COMMON_ENTRY_PTR
) xmalloc (sizeof (COMMON_ENTRY
));
614 SAVED_F77_COMMON_PTR head_common_list
= NULL
; /* Ptr to 1st saved COMMON */
615 SAVED_F77_COMMON_PTR tail_common_list
= NULL
; /* Ptr to last saved COMMON */
616 SAVED_F77_COMMON_PTR current_common
= NULL
; /* Ptr to current COMMON */
619 static SAVED_BF_PTR saved_bf_list
= NULL
; /* Ptr to (.bf,function)
621 static SAVED_BF_PTR saved_bf_list_end
= NULL
; /* Ptr to above list's end */
622 static SAVED_BF_PTR current_head_bf_list
= NULL
; /* Current head of above list
625 static SAVED_BF_PTR tmp_bf_ptr
; /* Generic temporary for use
628 /* The following function simply enters a given common block onto
629 the global common block chain */
632 add_common_block (name
, offset
, secnum
, func_stab
)
638 SAVED_F77_COMMON_PTR tmp
;
639 char *c
, *local_copy_func_stab
;
641 /* If the COMMON block we are trying to add has a blank
642 name (i.e. "#BLNK_COM") then we set it to __BLANK
643 because the darn "#" character makes GDB's input
647 if (STREQ (name
, BLANK_COMMON_NAME_ORIGINAL
) ||
648 STREQ (name
, BLANK_COMMON_NAME_MF77
))
652 name
= alloca (strlen (BLANK_COMMON_NAME_LOCAL
) + 1);
653 strcpy (name
, BLANK_COMMON_NAME_LOCAL
);
656 tmp
= allocate_saved_f77_common_node ();
658 local_copy_func_stab
= xmalloc (strlen (func_stab
) + 1);
659 strcpy (local_copy_func_stab
, func_stab
);
661 tmp
->name
= xmalloc (strlen (name
) + 1);
663 /* local_copy_func_stab is a stabstring, let us first extract the
664 function name from the stab by NULLing out the ':' character. */
668 c
= strchr (local_copy_func_stab
, ':');
673 error ("Malformed function STAB found in add_common_block()");
676 tmp
->owning_function
= xmalloc (strlen (local_copy_func_stab
) + 1);
678 strcpy (tmp
->owning_function
, local_copy_func_stab
);
680 strcpy (tmp
->name
, name
);
681 tmp
->offset
= offset
;
684 tmp
->secnum
= secnum
;
686 current_common
= tmp
;
688 if (head_common_list
== NULL
)
690 head_common_list
= tail_common_list
= tmp
;
694 tail_common_list
->next
= tmp
;
695 tail_common_list
= tmp
;
700 /* The following function simply enters a given common entry onto
701 the "current_common" block that has been saved away. */
705 add_common_entry (entry_sym_ptr
)
706 struct symbol
*entry_sym_ptr
;
708 COMMON_ENTRY_PTR tmp
;
712 /* The order of this list is important, since
713 we expect the entries to appear in decl.
714 order when we later issue "info common" calls */
716 tmp
= allocate_common_entry_node ();
719 tmp
->symbol
= entry_sym_ptr
;
721 if (current_common
== NULL
)
722 error ("Attempt to add COMMON entry with no block open!");
725 if (current_common
->entries
== NULL
)
727 current_common
->entries
= tmp
;
728 current_common
->end_of_entries
= tmp
;
732 current_common
->end_of_entries
->next
= tmp
;
733 current_common
->end_of_entries
= tmp
;
739 /* This routine finds the first encountred COMMON block named "name" */
742 static SAVED_F77_COMMON_PTR
743 find_first_common_named (name
)
747 SAVED_F77_COMMON_PTR tmp
;
749 tmp
= head_common_list
;
753 if (STREQ (tmp
->name
, name
))
762 /* This routine finds the first encountred COMMON block named "name"
763 that belongs to function funcname */
766 find_common_for_function (name
, funcname
)
771 SAVED_F77_COMMON_PTR tmp
;
773 tmp
= head_common_list
;
777 if (STREQ (tmp
->name
, name
) && STREQ (tmp
->owning_function
, funcname
))
788 /* The following function is called to patch up the offsets
789 for the statics contained in the COMMON block named
793 patch_common_entries (blk
, offset
, secnum
)
794 SAVED_F77_COMMON_PTR blk
;
798 COMMON_ENTRY_PTR entry
;
800 blk
->offset
= offset
; /* Keep this around for future use. */
802 entry
= blk
->entries
;
804 while (entry
!= NULL
)
806 SYMBOL_VALUE (entry
->symbol
) += offset
;
807 SYMBOL_SECTION (entry
->symbol
) = secnum
;
811 blk
->secnum
= secnum
;
814 /* Patch all commons named "name" that need patching.Since COMMON
815 blocks occur with relative infrequency, we simply do a linear scan on
816 the name. Eventually, the best way to do this will be a
817 hashed-lookup. Secnum is the section number for the .bss section
818 (which is where common data lives). */
821 patch_all_commons_by_name (name
, offset
, secnum
)
827 SAVED_F77_COMMON_PTR tmp
;
829 /* For blank common blocks, change the canonical reprsentation
832 if ((STREQ (name
, BLANK_COMMON_NAME_ORIGINAL
)) ||
833 (STREQ (name
, BLANK_COMMON_NAME_MF77
)))
836 name
= alloca (strlen (BLANK_COMMON_NAME_LOCAL
) + 1);
837 strcpy (name
, BLANK_COMMON_NAME_LOCAL
);
840 tmp
= head_common_list
;
844 if (COMMON_NEEDS_PATCHING (tmp
))
845 if (STREQ (tmp
->name
, name
))
846 patch_common_entries (tmp
, offset
, secnum
);
853 /* This macro adds the symbol-number for the start of the function
854 (the symbol number of the .bf) referenced by symnum_fcn to a
855 list. This list, in reality should be a FIFO queue but since
856 #line pragmas sometimes cause line ranges to get messed up
857 we simply create a linear list. This list can then be searched
858 first by a queueing algorithm and upon failure fall back to
862 #define ADD_BF_SYMNUM(bf_sym,fcn_sym) \
864 if (saved_bf_list == NULL) \
866 tmp_bf_ptr = allocate_saved_bf_node(); \
868 tmp_bf_ptr->symnum_bf = (bf_sym); \
869 tmp_bf_ptr->symnum_fcn = (fcn_sym); \
870 tmp_bf_ptr->next = NULL; \
872 current_head_bf_list = saved_bf_list = tmp_bf_ptr; \
873 saved_bf_list_end = tmp_bf_ptr; \
877 tmp_bf_ptr = allocate_saved_bf_node(); \
879 tmp_bf_ptr->symnum_bf = (bf_sym); \
880 tmp_bf_ptr->symnum_fcn = (fcn_sym); \
881 tmp_bf_ptr->next = NULL; \
883 saved_bf_list_end->next = tmp_bf_ptr; \
884 saved_bf_list_end = tmp_bf_ptr; \
888 /* This function frees the entire (.bf,function) list */
895 SAVED_BF_PTR tmp
= saved_bf_list
;
896 SAVED_BF_PTR next
= NULL
;
904 saved_bf_list
= NULL
;
908 int global_remote_debug
;
913 get_bf_for_fcn (the_function
)
919 /* First use a simple queuing algorithm (i.e. look and see if the
920 item at the head of the queue is the one you want) */
922 if (saved_bf_list
== NULL
)
923 fatal ("cannot get .bf node off empty list");
925 if (current_head_bf_list
!= NULL
)
926 if (current_head_bf_list
->symnum_fcn
== the_function
)
928 if (global_remote_debug
)
929 fprintf (stderr
, "*");
931 tmp
= current_head_bf_list
;
932 current_head_bf_list
= current_head_bf_list
->next
;
933 return (tmp
->symnum_bf
);
936 /* If the above did not work (probably because #line directives were
937 used in the sourcefile and they messed up our internal tables) we now do
938 the ugly linear scan */
940 if (global_remote_debug
)
941 fprintf (stderr
, "\ndefaulting to linear scan\n");
948 if (tmp
->symnum_fcn
== the_function
)
950 if (global_remote_debug
)
951 fprintf (stderr
, "Found in %d probes\n", nprobes
);
952 current_head_bf_list
= tmp
->next
;
953 return (tmp
->symnum_bf
);
961 static SAVED_FUNCTION_PTR saved_function_list
= NULL
;
962 static SAVED_FUNCTION_PTR saved_function_list_end
= NULL
;
965 clear_function_list ()
967 SAVED_FUNCTION_PTR tmp
= saved_function_list
;
968 SAVED_FUNCTION_PTR next
= NULL
;
977 saved_function_list
= NULL
;