1 /* Fortran language support routines for GDB, the GNU debugger.
2 Copyright 1993, 1994 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
26 #include "expression.h"
27 #include "parser-defs.h"
31 /* Print the character C on STREAM as part of the contents of a literal
32 string whose delimiter is QUOTER. Note that that format for printing
33 characters and strings is language specific.
34 FIXME: This is a copy of the same function from c-exp.y. It should
35 be replaced with a true F77 version. */
38 emit_char (c
, stream
, quoter
)
43 c
&= 0xFF; /* Avoid sign bit follies */
45 if (PRINT_LITERAL_FORM (c
))
47 if (c
== '\\' || c
== quoter
)
48 fputs_filtered ("\\", stream
);
49 fprintf_filtered (stream
, "%c", c
);
56 fputs_filtered ("\\n", stream
);
59 fputs_filtered ("\\b", stream
);
62 fputs_filtered ("\\t", stream
);
65 fputs_filtered ("\\f", stream
);
68 fputs_filtered ("\\r", stream
);
71 fputs_filtered ("\\e", stream
);
74 fputs_filtered ("\\a", stream
);
77 fprintf_filtered (stream
, "\\%.3o", (unsigned int) c
);
83 /* FIXME: This is a copy of the same function from c-exp.y. It should
84 be replaced with a true F77version. */
87 f_printchar (c
, stream
)
91 fputs_filtered ("'", stream
);
92 emit_char (c
, stream
, '\'');
93 fputs_filtered ("'", stream
);
96 /* Print the character string STRING, printing at most LENGTH characters.
97 Printing stops early if the number hits print_max; repeat counts
98 are printed as appropriate. Print ellipses at the end if we
99 had to stop before printing LENGTH characters, or if FORCE_ELLIPSES.
100 FIXME: This is a copy of the same function from c-exp.y. It should
101 be replaced with a true F77 version. */
104 f_printstr (stream
, string
, length
, force_ellipses
)
110 register unsigned int i
;
111 unsigned int things_printed
= 0;
114 extern int inspect_it
;
115 extern int repeat_count_threshold
;
116 extern int print_max
;
120 fputs_filtered ("''", stdout
);
124 for (i
= 0; i
< length
&& things_printed
< print_max
; ++i
)
126 /* Position of the character we are examining
127 to see whether it is repeated. */
129 /* Number of repetitions we have detected so far. */
136 fputs_filtered (", ", stream
);
142 while (rep1
< length
&& string
[rep1
] == string
[i
])
148 if (reps
> repeat_count_threshold
)
153 fputs_filtered ("\\', ", stream
);
155 fputs_filtered ("', ", stream
);
158 f_printchar (string
[i
], stream
);
159 fprintf_filtered (stream
, " <repeats %u times>", reps
);
161 things_printed
+= repeat_count_threshold
;
169 fputs_filtered ("\\'", stream
);
171 fputs_filtered ("'", stream
);
174 emit_char (string
[i
], stream
, '"');
179 /* Terminate the quotes if necessary. */
183 fputs_filtered ("\\'", stream
);
185 fputs_filtered ("'", stream
);
188 if (force_ellipses
|| i
< length
)
189 fputs_filtered ("...", stream
);
192 /* FIXME: This is a copy of c_create_fundamental_type(), before
193 all the non-C types were stripped from it. Needs to be fixed
194 by an experienced F77 programmer. */
197 f_create_fundamental_type (objfile
, typeid)
198 struct objfile
*objfile
;
201 register struct type
*type
= NULL
;
206 type
= init_type (TYPE_CODE_VOID
,
207 TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
211 type
= init_type (TYPE_CODE_BOOL
,
212 TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
213 TYPE_FLAG_UNSIGNED
, "boolean", objfile
);
216 type
= init_type (TYPE_CODE_STRING
,
217 TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
218 0, "string", objfile
);
221 type
= init_type (TYPE_CODE_INT
,
222 TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
223 0, "character", objfile
);
226 type
= init_type (TYPE_CODE_INT
,
227 TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
228 0, "integer*1", objfile
);
230 case FT_UNSIGNED_CHAR
:
231 type
= init_type (TYPE_CODE_BOOL
,
232 TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
233 TYPE_FLAG_UNSIGNED
, "logical*1", objfile
);
236 type
= init_type (TYPE_CODE_INT
,
237 TARGET_SHORT_BIT
/ TARGET_CHAR_BIT
,
238 0, "integer*2", objfile
);
240 case FT_SIGNED_SHORT
:
241 type
= init_type (TYPE_CODE_INT
,
242 TARGET_SHORT_BIT
/ TARGET_CHAR_BIT
,
243 0, "short", objfile
); /* FIXME-fnf */
245 case FT_UNSIGNED_SHORT
:
246 type
= init_type (TYPE_CODE_BOOL
,
247 TARGET_SHORT_BIT
/ TARGET_CHAR_BIT
,
248 TYPE_FLAG_UNSIGNED
, "logical*2", objfile
);
251 type
= init_type (TYPE_CODE_INT
,
252 TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
253 0, "integer*4", objfile
);
255 case FT_SIGNED_INTEGER
:
256 type
= init_type (TYPE_CODE_INT
,
257 TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
258 0, "integer", objfile
); /* FIXME -fnf */
260 case FT_UNSIGNED_INTEGER
:
261 type
= init_type (TYPE_CODE_BOOL
,
262 TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
263 TYPE_FLAG_UNSIGNED
, "logical*4", objfile
);
265 case FT_FIXED_DECIMAL
:
266 type
= init_type (TYPE_CODE_INT
,
267 TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
268 0, "fixed decimal", objfile
);
271 type
= init_type (TYPE_CODE_INT
,
272 TARGET_LONG_BIT
/ TARGET_CHAR_BIT
,
276 type
= init_type (TYPE_CODE_INT
,
277 TARGET_LONG_BIT
/ TARGET_CHAR_BIT
,
278 0, "long", objfile
); /* FIXME -fnf */
280 case FT_UNSIGNED_LONG
:
281 type
= init_type (TYPE_CODE_INT
,
282 TARGET_LONG_BIT
/ TARGET_CHAR_BIT
,
283 TYPE_FLAG_UNSIGNED
, "unsigned long", objfile
);
286 type
= init_type (TYPE_CODE_INT
,
287 TARGET_LONG_LONG_BIT
/ TARGET_CHAR_BIT
,
288 0, "long long", objfile
);
290 case FT_SIGNED_LONG_LONG
:
291 type
= init_type (TYPE_CODE_INT
,
292 TARGET_LONG_LONG_BIT
/ TARGET_CHAR_BIT
,
293 0, "signed long long", objfile
);
295 case FT_UNSIGNED_LONG_LONG
:
296 type
= init_type (TYPE_CODE_INT
,
297 TARGET_LONG_LONG_BIT
/ TARGET_CHAR_BIT
,
298 TYPE_FLAG_UNSIGNED
, "unsigned long long", objfile
);
301 type
= init_type (TYPE_CODE_FLT
,
302 TARGET_FLOAT_BIT
/ TARGET_CHAR_BIT
,
305 case FT_DBL_PREC_FLOAT
:
306 type
= init_type (TYPE_CODE_FLT
,
307 TARGET_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
308 0, "real*8", objfile
);
310 case FT_FLOAT_DECIMAL
:
311 type
= init_type (TYPE_CODE_FLT
,
312 TARGET_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
313 0, "floating decimal", objfile
);
315 case FT_EXT_PREC_FLOAT
:
316 type
= init_type (TYPE_CODE_FLT
,
317 TARGET_LONG_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
318 0, "real*16", objfile
);
321 type
= init_type (TYPE_CODE_FLT
,
322 TARGET_COMPLEX_BIT
/ TARGET_CHAR_BIT
,
323 0, "complex*8", objfile
);
325 case FT_DBL_PREC_COMPLEX
:
326 type
= init_type (TYPE_CODE_FLT
,
327 TARGET_DOUBLE_COMPLEX_BIT
/ TARGET_CHAR_BIT
,
328 0, "complex*16", objfile
);
330 case FT_EXT_PREC_COMPLEX
:
331 type
= init_type (TYPE_CODE_FLT
,
332 TARGET_DOUBLE_COMPLEX_BIT
/ TARGET_CHAR_BIT
,
333 0, "complex*32", objfile
);
336 /* FIXME: For now, if we are asked to produce a type not in this
337 language, create the equivalent of a C integer type with the
338 name "<?type?>". When all the dust settles from the type
339 reconstruction work, this should probably become an error. */
340 type
= init_type (TYPE_CODE_INT
,
341 TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
342 0, "<?type?>", objfile
);
343 warning ("internal error: no F77 fundamental type %d", typeid);
350 /* Table of operators and their precedences for printing expressions. */
352 static const struct op_print f_op_print_tab
[] = {
353 { "+", BINOP_ADD
, PREC_ADD
, 0 },
354 { "+", UNOP_PLUS
, PREC_PREFIX
, 0 },
355 { "-", BINOP_SUB
, PREC_ADD
, 0 },
356 { "-", UNOP_NEG
, PREC_PREFIX
, 0 },
357 { "*", BINOP_MUL
, PREC_MUL
, 0 },
358 { "/", BINOP_DIV
, PREC_MUL
, 0 },
359 { "DIV", BINOP_INTDIV
, PREC_MUL
, 0 },
360 { "MOD", BINOP_REM
, PREC_MUL
, 0 },
361 { "=", BINOP_ASSIGN
, PREC_ASSIGN
, 1 },
362 { ".OR.", BINOP_LOGICAL_OR
, PREC_LOGICAL_OR
, 0 },
363 { ".AND.", BINOP_LOGICAL_AND
, PREC_LOGICAL_AND
, 0 },
364 { ".NOT.", UNOP_LOGICAL_NOT
, PREC_PREFIX
, 0 },
365 { ".EQ.", BINOP_EQUAL
, PREC_EQUAL
, 0 },
366 { ".NE.", BINOP_NOTEQUAL
, PREC_EQUAL
, 0 },
367 { ".LE.", BINOP_LEQ
, PREC_ORDER
, 0 },
368 { ".GE.", BINOP_GEQ
, PREC_ORDER
, 0 },
369 { ".GT.", BINOP_GTR
, PREC_ORDER
, 0 },
370 { ".LT.", BINOP_LESS
, PREC_ORDER
, 0 },
371 { "**", UNOP_IND
, PREC_PREFIX
, 0 },
372 { "@", BINOP_REPEAT
, PREC_REPEAT
, 0 },
376 /* The built-in types of F77. FIXME: integer*4 is missing, plain
377 logical is missing (builtin_type_logical is logical*4). */
379 struct type
*builtin_type_f_character
;
380 struct type
*builtin_type_f_logical
;
381 struct type
*builtin_type_f_logical_s1
;
382 struct type
*builtin_type_f_logical_s2
;
383 struct type
*builtin_type_f_integer
;
384 struct type
*builtin_type_f_integer_s2
;
385 struct type
*builtin_type_f_real
;
386 struct type
*builtin_type_f_real_s8
;
387 struct type
*builtin_type_f_real_s16
;
388 struct type
*builtin_type_f_complex_s8
;
389 struct type
*builtin_type_f_complex_s16
;
390 struct type
*builtin_type_f_complex_s32
;
391 struct type
*builtin_type_f_void
;
393 struct type
** const (f_builtin_types
[]) =
395 &builtin_type_f_character
,
396 &builtin_type_f_logical
,
397 &builtin_type_f_logical_s1
,
398 &builtin_type_f_logical_s2
,
399 &builtin_type_f_integer
,
400 &builtin_type_f_integer_s2
,
401 &builtin_type_f_real
,
402 &builtin_type_f_real_s8
,
403 &builtin_type_f_real_s16
,
404 &builtin_type_f_complex_s8
,
405 &builtin_type_f_complex_s16
,
407 &builtin_type_f_complex_s32
,
409 &builtin_type_f_void
,
415 const struct language_defn f_language_defn
= {
421 f_parse
, /* parser */
422 f_error
, /* parser error function */
423 f_printchar
, /* Print character constant */
424 f_printstr
, /* function to print string constant */
425 f_create_fundamental_type
, /* Create fundamental type in this language */
426 f_print_type
, /* Print a type using appropriate syntax */
427 f_val_print
, /* Print a value using appropriate syntax */
428 c_value_print
, /* FIXME */
429 {"", "", "", ""}, /* Binary format info */
430 {"0%o", "0", "o", ""}, /* Octal format info */
431 {"%d", "", "d", ""}, /* Decimal format info */
432 {"0x%x", "0x", "x", ""}, /* Hex format info */
433 f_op_print_tab
, /* expression operators for printing */
438 _initialize_f_language ()
440 builtin_type_f_void
=
441 init_type (TYPE_CODE_VOID
, 1,
443 "VOID", (struct objfile
*) NULL
);
445 builtin_type_f_character
=
446 init_type (TYPE_CODE_INT
, TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
448 "character", (struct objfile
*) NULL
);
450 builtin_type_f_logical_s1
=
451 init_type (TYPE_CODE_BOOL
, TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
453 "logical*1", (struct objfile
*) NULL
);
455 builtin_type_f_integer_s2
=
456 init_type (TYPE_CODE_INT
, TARGET_SHORT_BIT
/ TARGET_CHAR_BIT
,
458 "integer*2", (struct objfile
*) NULL
);
460 builtin_type_f_logical_s2
=
461 init_type (TYPE_CODE_BOOL
, TARGET_SHORT_BIT
/ TARGET_CHAR_BIT
,
463 "logical*2", (struct objfile
*) NULL
);
465 builtin_type_f_integer
=
466 init_type (TYPE_CODE_INT
, TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
468 "integer", (struct objfile
*) NULL
);
470 builtin_type_f_logical
=
471 init_type (TYPE_CODE_BOOL
, TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
473 "logical*4", (struct objfile
*) NULL
);
475 builtin_type_f_real
=
476 init_type (TYPE_CODE_FLT
, TARGET_FLOAT_BIT
/ TARGET_CHAR_BIT
,
478 "real", (struct objfile
*) NULL
);
480 builtin_type_f_real_s8
=
481 init_type (TYPE_CODE_FLT
, TARGET_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
483 "real*8", (struct objfile
*) NULL
);
485 builtin_type_f_real_s16
=
486 init_type (TYPE_CODE_FLT
, TARGET_LONG_DOUBLE_BIT
/ TARGET_CHAR_BIT
,
488 "real*16", (struct objfile
*) NULL
);
490 builtin_type_f_complex_s8
=
491 init_type (TYPE_CODE_COMPLEX
, TARGET_COMPLEX_BIT
/ TARGET_CHAR_BIT
,
493 "complex*8", (struct objfile
*) NULL
);
495 builtin_type_f_complex_s16
=
496 init_type (TYPE_CODE_COMPLEX
, TARGET_DOUBLE_COMPLEX_BIT
/ TARGET_CHAR_BIT
,
498 "complex*16", (struct objfile
*) NULL
);
501 /* We have a new size == 4 double floats for the
502 complex*32 data type */
504 builtin_type_f_complex_s32
=
505 init_type (TYPE_CODE_COMPLEX
, TARGET_EXT_COMPLEX_BIT
/ TARGET_CHAR_BIT
,
507 "complex*32", (struct objfile
*) NULL
);
509 builtin_type_string
=
510 init_type (TYPE_CODE_STRING
, TARGET_CHAR_BIT
/ TARGET_CHAR_BIT
,
512 "character string", (struct objfile
*) NULL
);
514 add_language (&f_language_defn
);
517 /* Following is dubious stuff that had been in the xcoff reader. */
521 long line_offset
; /* Line offset for function */
522 struct saved_fcn
*next
;
526 struct saved_bf_symnum
528 long symnum_fcn
; /* Symnum of function (i.e. .function directive) */
529 long symnum_bf
; /* Symnum of .bf for this function */
530 struct saved_bf_symnum
*next
;
533 typedef struct saved_fcn SAVED_FUNCTION
, *SAVED_FUNCTION_PTR
;
534 typedef struct saved_bf_symnum SAVED_BF
, *SAVED_BF_PTR
;
537 SAVED_BF_PTR
allocate_saved_bf_node()
541 new = (SAVED_BF_PTR
) malloc (sizeof (SAVED_BF
));
544 fatal("could not allocate enough memory to save one more .bf on save list");
548 SAVED_FUNCTION
*allocate_saved_function_node()
552 new = (SAVED_FUNCTION
*) malloc (sizeof (SAVED_FUNCTION
));
555 fatal("could not allocate enough memory to save one more function on save list");
560 SAVED_F77_COMMON_PTR
allocate_saved_f77_common_node()
562 SAVED_F77_COMMON_PTR
new;
564 new = (SAVED_F77_COMMON_PTR
) malloc (sizeof (SAVED_F77_COMMON
));
567 fatal("could not allocate enough memory to save one more F77 COMMON blk on save list");
572 COMMON_ENTRY_PTR
allocate_common_entry_node()
574 COMMON_ENTRY_PTR
new;
576 new = (COMMON_ENTRY_PTR
) malloc (sizeof (COMMON_ENTRY
));
579 fatal("could not allocate enough memory to save one more COMMON entry on save list");
585 SAVED_F77_COMMON_PTR head_common_list
=NULL
; /* Ptr to 1st saved COMMON */
586 SAVED_F77_COMMON_PTR tail_common_list
=NULL
; /* Ptr to last saved COMMON */
587 SAVED_F77_COMMON_PTR current_common
=NULL
; /* Ptr to current COMMON */
589 static SAVED_BF_PTR saved_bf_list
=NULL
; /* Ptr to (.bf,function)
591 static SAVED_BF_PTR saved_bf_list_end
=NULL
; /* Ptr to above list's end */
592 static SAVED_BF_PTR current_head_bf_list
=NULL
; /* Current head of above list
595 static SAVED_BF_PTR tmp_bf_ptr
; /* Generic temporary for use
599 /* The following function simply enters a given common block onto
600 the global common block chain */
602 void add_common_block(name
,offset
,secnum
,func_stab
)
609 SAVED_F77_COMMON_PTR tmp
;
610 char *c
,*local_copy_func_stab
;
612 /* If the COMMON block we are trying to add has a blank
613 name (i.e. "#BLNK_COM") then we set it to __BLANK
614 because the darn "#" character makes GDB's input
618 if (STREQ(name
,BLANK_COMMON_NAME_ORIGINAL
) ||
619 STREQ(name
,BLANK_COMMON_NAME_MF77
))
623 name
= alloca(strlen(BLANK_COMMON_NAME_LOCAL
) + 1);
624 strcpy(name
,BLANK_COMMON_NAME_LOCAL
);
627 tmp
= allocate_saved_f77_common_node();
629 local_copy_func_stab
= malloc (strlen(func_stab
) + 1);
630 strcpy(local_copy_func_stab
,func_stab
);
632 tmp
->name
= malloc(strlen(name
) + 1);
634 /* local_copy_func_stab is a stabstring, let us first extract the
635 function name from the stab by NULLing out the ':' character. */
639 c
= strchr(local_copy_func_stab
,':');
644 error("Malformed function STAB found in add_common_block()");
647 tmp
->owning_function
= malloc (strlen(local_copy_func_stab
) + 1);
649 strcpy(tmp
->owning_function
,local_copy_func_stab
);
651 strcpy(tmp
->name
,name
);
652 tmp
->offset
= offset
;
655 tmp
->secnum
= secnum
;
657 current_common
= tmp
;
659 if (head_common_list
== NULL
)
661 head_common_list
= tail_common_list
= tmp
;
665 tail_common_list
->next
= tmp
;
666 tail_common_list
= tmp
;
672 /* The following function simply enters a given common entry onto
673 the "current_common" block that has been saved away. */
675 void add_common_entry(entry_sym_ptr
)
676 struct symbol
*entry_sym_ptr
;
678 COMMON_ENTRY_PTR tmp
;
682 /* The order of this list is important, since
683 we expect the entries to appear in decl.
684 order when we later issue "info common" calls */
686 tmp
= allocate_common_entry_node();
689 tmp
->symbol
= entry_sym_ptr
;
691 if (current_common
== NULL
)
692 error("Attempt to add COMMON entry with no block open!");
695 if (current_common
->entries
== NULL
)
697 current_common
->entries
= tmp
;
698 current_common
->end_of_entries
= tmp
;
702 current_common
->end_of_entries
->next
= tmp
;
703 current_common
->end_of_entries
= tmp
;
710 /* This routine finds the first encountred COMMON block named "name" */
712 SAVED_F77_COMMON_PTR
find_first_common_named(name
)
716 SAVED_F77_COMMON_PTR tmp
;
718 tmp
= head_common_list
;
722 if (STREQ(tmp
->name
,name
))
730 /* This routine finds the first encountred COMMON block named "name"
731 that belongs to function funcname */
733 SAVED_F77_COMMON_PTR
find_common_for_function(name
, funcname
)
738 SAVED_F77_COMMON_PTR tmp
;
740 tmp
= head_common_list
;
744 if (STREQ(tmp
->name
,name
) && STREQ(tmp
->owning_function
,funcname
))
755 /* The following function is called to patch up the offsets
756 for the statics contained in the COMMON block named
760 void patch_common_entries (blk
, offset
, secnum
)
761 SAVED_F77_COMMON_PTR blk
;
765 COMMON_ENTRY_PTR entry
;
767 blk
->offset
= offset
; /* Keep this around for future use. */
769 entry
= blk
->entries
;
771 while (entry
!= NULL
)
773 SYMBOL_VALUE (entry
->symbol
) += offset
;
774 SYMBOL_SECTION (entry
->symbol
) = secnum
;
778 blk
->secnum
= secnum
;
782 /* Patch all commons named "name" that need patching.Since COMMON
783 blocks occur with relative infrequency, we simply do a linear scan on
784 the name. Eventually, the best way to do this will be a
785 hashed-lookup. Secnum is the section number for the .bss section
786 (which is where common data lives). */
789 void patch_all_commons_by_name (name
, offset
, secnum
)
795 SAVED_F77_COMMON_PTR tmp
;
797 /* For blank common blocks, change the canonical reprsentation
800 if ((STREQ(name
,BLANK_COMMON_NAME_ORIGINAL
)) ||
801 (STREQ(name
,BLANK_COMMON_NAME_MF77
)))
804 name
= alloca(strlen(BLANK_COMMON_NAME_LOCAL
) + 1);
805 strcpy(name
,BLANK_COMMON_NAME_LOCAL
);
808 tmp
= head_common_list
;
812 if (COMMON_NEEDS_PATCHING(tmp
))
813 if (STREQ(tmp
->name
,name
))
814 patch_common_entries(tmp
,offset
,secnum
);
825 /* This macro adds the symbol-number for the start of the function
826 (the symbol number of the .bf) referenced by symnum_fcn to a
827 list. This list, in reality should be a FIFO queue but since
828 #line pragmas sometimes cause line ranges to get messed up
829 we simply create a linear list. This list can then be searched
830 first by a queueing algorithm and upon failure fall back to
833 #define ADD_BF_SYMNUM(bf_sym,fcn_sym) \
835 if (saved_bf_list == NULL) \
837 tmp_bf_ptr = allocate_saved_bf_node(); \
839 tmp_bf_ptr->symnum_bf = (bf_sym); \
840 tmp_bf_ptr->symnum_fcn = (fcn_sym); \
841 tmp_bf_ptr->next = NULL; \
843 current_head_bf_list = saved_bf_list = tmp_bf_ptr; \
844 saved_bf_list_end = tmp_bf_ptr; \
848 tmp_bf_ptr = allocate_saved_bf_node(); \
850 tmp_bf_ptr->symnum_bf = (bf_sym); \
851 tmp_bf_ptr->symnum_fcn = (fcn_sym); \
852 tmp_bf_ptr->next = NULL; \
854 saved_bf_list_end->next = tmp_bf_ptr; \
855 saved_bf_list_end = tmp_bf_ptr; \
859 /* This function frees the entire (.bf,function) list */
865 SAVED_BF_PTR tmp
= saved_bf_list
;
866 SAVED_BF_PTR next
= NULL
;
874 saved_bf_list
= NULL
;
877 int global_remote_debug
;
880 get_bf_for_fcn (the_function
)
886 /* First use a simple queuing algorithm (i.e. look and see if the
887 item at the head of the queue is the one you want) */
889 if (saved_bf_list
== NULL
)
890 fatal ("cannot get .bf node off empty list");
892 if (current_head_bf_list
!= NULL
)
893 if (current_head_bf_list
->symnum_fcn
== the_function
)
895 if (global_remote_debug
)
898 tmp
= current_head_bf_list
;
899 current_head_bf_list
= current_head_bf_list
->next
;
900 return(tmp
->symnum_bf
);
903 /* If the above did not work (probably because #line directives were
904 used in the sourcefile and they messed up our internal tables) we now do
905 the ugly linear scan */
907 if (global_remote_debug
)
908 fprintf(stderr
,"\ndefaulting to linear scan\n");
915 if (tmp
->symnum_fcn
== the_function
)
917 if (global_remote_debug
)
918 fprintf(stderr
,"Found in %d probes\n",nprobes
);
919 current_head_bf_list
= tmp
->next
;
920 return(tmp
->symnum_bf
);
928 static SAVED_FUNCTION_PTR saved_function_list
=NULL
;
929 static SAVED_FUNCTION_PTR saved_function_list_end
=NULL
;
931 void clear_function_list()
933 SAVED_FUNCTION_PTR tmp
= saved_function_list
;
934 SAVED_FUNCTION_PTR next
= NULL
;
943 saved_function_list
= NULL
;