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 3 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, see <http://www.gnu.org/licenses/>. */
25 #include "gdb_string.h"
28 #include "expression.h"
29 #include "parser-defs.h"
36 /* Following is dubious stuff that had been in the xcoff reader. */
40 long line_offset; /* Line offset for function */
41 struct saved_fcn *next;
45 struct saved_bf_symnum
47 long symnum_fcn; /* Symnum of function (i.e. .function directive) */
48 long symnum_bf; /* Symnum of .bf for this function */
49 struct saved_bf_symnum *next;
52 typedef struct saved_fcn SAVED_FUNCTION, *SAVED_FUNCTION_PTR;
53 typedef struct saved_bf_symnum SAVED_BF, *SAVED_BF_PTR;
57 extern void _initialize_f_language (void);
59 static void clear_function_list (void);
60 static long get_bf_for_fcn (long);
61 static void clear_bf_list (void);
62 static void patch_all_commons_by_name (char *, CORE_ADDR, int);
63 static SAVED_F77_COMMON_PTR find_first_common_named (char *);
64 static void add_common_entry (struct symbol *);
65 static void add_common_block (char *, CORE_ADDR, int, char *);
66 static SAVED_FUNCTION *allocate_saved_function_node (void);
67 static SAVED_BF_PTR allocate_saved_bf_node (void);
68 static COMMON_ENTRY_PTR allocate_common_entry_node (void);
69 static SAVED_F77_COMMON_PTR allocate_saved_f77_common_node (void);
70 static void patch_common_entries (SAVED_F77_COMMON_PTR, CORE_ADDR, int);
73 static struct type *f_create_fundamental_type (struct objfile *, int);
74 static void f_printchar (int c, struct ui_file * stream);
75 static void f_emit_char (int c, struct ui_file * stream, int quoter);
77 /* Print the character C on STREAM as part of the contents of a literal
78 string whose delimiter is QUOTER. Note that that format for printing
79 characters and strings is language specific.
80 FIXME: This is a copy of the same function from c-exp.y. It should
81 be replaced with a true F77 version. */
84 f_emit_char (int c, struct ui_file *stream, int quoter)
86 c &= 0xFF; /* Avoid sign bit follies */
88 if (PRINT_LITERAL_FORM (c))
90 if (c == '\\' || c == quoter)
91 fputs_filtered ("\\", stream);
92 fprintf_filtered (stream, "%c", c);
99 fputs_filtered ("\\n", stream);
102 fputs_filtered ("\\b", stream);
105 fputs_filtered ("\\t", stream);
108 fputs_filtered ("\\f", stream);
111 fputs_filtered ("\\r", stream);
114 fputs_filtered ("\\e", stream);
117 fputs_filtered ("\\a", stream);
120 fprintf_filtered (stream, "\\%.3o", (unsigned int) c);
126 /* FIXME: This is a copy of the same function from c-exp.y. It should
127 be replaced with a true F77version. */
130 f_printchar (int c, struct ui_file *stream)
132 fputs_filtered ("'", stream);
133 LA_EMIT_CHAR (c, stream, '\'');
134 fputs_filtered ("'", stream);
137 /* Print the character string STRING, printing at most LENGTH characters.
138 Printing stops early if the number hits print_max; repeat counts
139 are printed as appropriate. Print ellipses at the end if we
140 had to stop before printing LENGTH characters, or if FORCE_ELLIPSES.
141 FIXME: This is a copy of the same function from c-exp.y. It should
142 be replaced with a true F77 version. */
145 f_printstr (struct ui_file *stream, const gdb_byte *string,
146 unsigned int length, int width, int force_ellipses)
149 unsigned int things_printed = 0;
155 fputs_filtered ("''", gdb_stdout);
159 for (i = 0; i < length && things_printed < print_max; ++i)
161 /* Position of the character we are examining
162 to see whether it is repeated. */
164 /* Number of repetitions we have detected so far. */
171 fputs_filtered (", ", stream);
177 while (rep1 < length && string[rep1] == string[i])
183 if (reps > repeat_count_threshold)
188 fputs_filtered ("\\', ", stream);
190 fputs_filtered ("', ", stream);
193 f_printchar (string[i], stream);
194 fprintf_filtered (stream, " <repeats %u times>", reps);
196 things_printed += repeat_count_threshold;
204 fputs_filtered ("\\'", stream);
206 fputs_filtered ("'", stream);
209 LA_EMIT_CHAR (string[i], stream, '"');
214 /* Terminate the quotes if necessary. */
218 fputs_filtered ("\\'", stream);
220 fputs_filtered ("'", stream);
223 if (force_ellipses || i < length)
224 fputs_filtered ("...", stream);
227 /* FIXME: This is a copy of c_create_fundamental_type(), before
228 all the non-C types were stripped from it. Needs to be fixed
229 by an experienced F77 programmer. */
232 f_create_fundamental_type (struct objfile *objfile, int typeid)
234 struct type *type = NULL;
239 type = init_type (TYPE_CODE_VOID,
240 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
244 type = init_type (TYPE_CODE_BOOL,
245 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
246 TYPE_FLAG_UNSIGNED, "boolean", objfile);
249 type = init_type (TYPE_CODE_STRING,
250 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
251 0, "string", objfile);
254 type = init_type (TYPE_CODE_INT,
255 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
256 0, "character", objfile);
259 type = init_type (TYPE_CODE_INT,
260 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
261 0, "integer*1", objfile);
263 case FT_UNSIGNED_CHAR:
264 type = init_type (TYPE_CODE_BOOL,
265 TARGET_CHAR_BIT / TARGET_CHAR_BIT,
266 TYPE_FLAG_UNSIGNED, "logical*1", objfile);
269 type = init_type (TYPE_CODE_INT,
270 gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
271 0, "integer*2", objfile);
273 case FT_SIGNED_SHORT:
274 type = init_type (TYPE_CODE_INT,
275 gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
276 0, "short", objfile); /* FIXME-fnf */
278 case FT_UNSIGNED_SHORT:
279 type = init_type (TYPE_CODE_BOOL,
280 gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
281 TYPE_FLAG_UNSIGNED, "logical*2", objfile);
284 type = init_type (TYPE_CODE_INT,
285 gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
286 0, "integer*4", objfile);
288 case FT_SIGNED_INTEGER:
289 type = init_type (TYPE_CODE_INT,
290 gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
291 0, "integer", objfile); /* FIXME -fnf */
293 case FT_UNSIGNED_INTEGER:
294 type = init_type (TYPE_CODE_BOOL,
295 gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
296 TYPE_FLAG_UNSIGNED, "logical*4", objfile);
298 case FT_FIXED_DECIMAL:
299 type = init_type (TYPE_CODE_INT,
300 gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
301 0, "fixed decimal", objfile);
304 type = init_type (TYPE_CODE_INT,
305 gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT,
309 type = init_type (TYPE_CODE_INT,
310 gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT,
311 0, "long", objfile); /* FIXME -fnf */
313 case FT_UNSIGNED_LONG:
314 type = init_type (TYPE_CODE_INT,
315 gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT,
316 TYPE_FLAG_UNSIGNED, "unsigned long", objfile);
319 type = init_type (TYPE_CODE_INT,
320 gdbarch_long_long_bit (current_gdbarch)
322 0, "long long", objfile);
324 case FT_SIGNED_LONG_LONG:
325 type = init_type (TYPE_CODE_INT,
326 gdbarch_long_long_bit (current_gdbarch)
328 0, "signed long long", objfile);
330 case FT_UNSIGNED_LONG_LONG:
331 type = init_type (TYPE_CODE_INT,
332 gdbarch_long_long_bit (current_gdbarch)
334 TYPE_FLAG_UNSIGNED, "unsigned long long", objfile);
337 type = init_type (TYPE_CODE_FLT,
338 gdbarch_float_bit (current_gdbarch) / TARGET_CHAR_BIT,
341 case FT_DBL_PREC_FLOAT:
342 type = init_type (TYPE_CODE_FLT,
343 gdbarch_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
344 0, "real*8", objfile);
346 case FT_FLOAT_DECIMAL:
347 type = init_type (TYPE_CODE_FLT,
348 gdbarch_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
349 0, "floating decimal", objfile);
351 case FT_EXT_PREC_FLOAT:
352 type = init_type (TYPE_CODE_FLT,
353 gdbarch_long_double_bit (current_gdbarch)
355 0, "real*16", objfile);
358 type = init_type (TYPE_CODE_COMPLEX,
359 2 * gdbarch_float_bit (current_gdbarch) / TARGET_CHAR_BIT,
360 0, "complex*8", objfile);
361 TYPE_TARGET_TYPE (type) = builtin_type_f_real;
363 case FT_DBL_PREC_COMPLEX:
364 type = init_type (TYPE_CODE_COMPLEX,
365 2 * gdbarch_double_bit (current_gdbarch)
367 0, "complex*16", objfile);
368 TYPE_TARGET_TYPE (type) = builtin_type_f_real_s8;
370 case FT_EXT_PREC_COMPLEX:
371 type = init_type (TYPE_CODE_COMPLEX,
372 2 * gdbarch_long_double_bit (current_gdbarch)
374 0, "complex*32", objfile);
375 TYPE_TARGET_TYPE (type) = builtin_type_f_real_s16;
378 /* FIXME: For now, if we are asked to produce a type not in this
379 language, create the equivalent of a C integer type with the
380 name "<?type?>". When all the dust settles from the type
381 reconstruction work, this should probably become an error. */
382 type = init_type (TYPE_CODE_INT,
383 gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
384 0, "<?type?>", objfile);
385 warning (_("internal error: no F77 fundamental type %d"), typeid);
392 /* Table of operators and their precedences for printing expressions. */
394 static const struct op_print f_op_print_tab[] =
396 {"+", BINOP_ADD, PREC_ADD, 0},
397 {"+", UNOP_PLUS, PREC_PREFIX, 0},
398 {"-", BINOP_SUB, PREC_ADD, 0},
399 {"-", UNOP_NEG, PREC_PREFIX, 0},
400 {"*", BINOP_MUL, PREC_MUL, 0},
401 {"/", BINOP_DIV, PREC_MUL, 0},
402 {"DIV", BINOP_INTDIV, PREC_MUL, 0},
403 {"MOD", BINOP_REM, PREC_MUL, 0},
404 {"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
405 {".OR.", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
406 {".AND.", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
407 {".NOT.", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
408 {".EQ.", BINOP_EQUAL, PREC_EQUAL, 0},
409 {".NE.", BINOP_NOTEQUAL, PREC_EQUAL, 0},
410 {".LE.", BINOP_LEQ, PREC_ORDER, 0},
411 {".GE.", BINOP_GEQ, PREC_ORDER, 0},
412 {".GT.", BINOP_GTR, PREC_ORDER, 0},
413 {".LT.", BINOP_LESS, PREC_ORDER, 0},
414 {"**", UNOP_IND, PREC_PREFIX, 0},
415 {"@", BINOP_REPEAT, PREC_REPEAT, 0},
419 enum f_primitive_types {
420 f_primitive_type_character,
421 f_primitive_type_logical,
422 f_primitive_type_logical_s1,
423 f_primitive_type_logical_s2,
424 f_primitive_type_integer,
425 f_primitive_type_integer_s2,
426 f_primitive_type_real,
427 f_primitive_type_real_s8,
428 f_primitive_type_real_s16,
429 f_primitive_type_complex_s8,
430 f_primitive_type_complex_s16,
431 f_primitive_type_void,
436 f_language_arch_info (struct gdbarch *gdbarch,
437 struct language_arch_info *lai)
439 const struct builtin_f_type *builtin = builtin_f_type (gdbarch);
441 lai->string_char_type = builtin->builtin_character;
442 lai->primitive_type_vector
443 = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_f_primitive_types + 1,
446 lai->primitive_type_vector [f_primitive_type_character]
447 = builtin->builtin_character;
448 lai->primitive_type_vector [f_primitive_type_logical]
449 = builtin->builtin_logical;
450 lai->primitive_type_vector [f_primitive_type_logical_s1]
451 = builtin->builtin_logical_s1;
452 lai->primitive_type_vector [f_primitive_type_logical_s2]
453 = builtin->builtin_logical_s2;
454 lai->primitive_type_vector [f_primitive_type_real]
455 = builtin->builtin_real;
456 lai->primitive_type_vector [f_primitive_type_real_s8]
457 = builtin->builtin_real_s8;
458 lai->primitive_type_vector [f_primitive_type_real_s16]
459 = builtin->builtin_real_s16;
460 lai->primitive_type_vector [f_primitive_type_complex_s8]
461 = builtin->builtin_complex_s8;
462 lai->primitive_type_vector [f_primitive_type_complex_s16]
463 = builtin->builtin_complex_s16;
464 lai->primitive_type_vector [f_primitive_type_void]
465 = builtin->builtin_void;
468 /* This is declared in c-lang.h but it is silly to import that file for what
469 is already just a hack. */
470 extern int c_value_print (struct value *, struct ui_file *, int,
471 enum val_prettyprint);
473 const struct language_defn f_language_defn =
482 &exp_descriptor_standard,
483 f_parse, /* parser */
484 f_error, /* parser error function */
486 f_printchar, /* Print character constant */
487 f_printstr, /* function to print string constant */
488 f_emit_char, /* Function to print a single character */
489 f_create_fundamental_type, /* Create fundamental type in this language */
490 f_print_type, /* Print a type using appropriate syntax */
491 f_val_print, /* Print a value using appropriate syntax */
492 c_value_print, /* FIXME */
493 NULL, /* Language specific skip_trampoline */
494 value_of_this, /* value_of_this */
495 basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
496 basic_lookup_transparent_type,/* lookup_transparent_type */
497 NULL, /* Language specific symbol demangler */
498 NULL, /* Language specific class_name_from_physname */
499 f_op_print_tab, /* expression operators for printing */
500 0, /* arrays are first-class (not c-style) */
501 1, /* String lower bound */
503 default_word_break_characters,
504 f_language_arch_info,
505 default_print_array_index,
506 default_pass_by_reference,
511 build_fortran_types (struct gdbarch *gdbarch)
513 struct builtin_f_type *builtin_f_type
514 = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_f_type);
516 builtin_f_type->builtin_void =
517 init_type (TYPE_CODE_VOID, 1,
519 "VOID", (struct objfile *) NULL);
521 builtin_f_type->builtin_character =
522 init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
524 "character", (struct objfile *) NULL);
526 builtin_f_type->builtin_logical_s1 =
527 init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
529 "logical*1", (struct objfile *) NULL);
531 builtin_f_type->builtin_integer_s2 =
532 init_type (TYPE_CODE_INT,
533 gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
534 0, "integer*2", (struct objfile *) NULL);
536 builtin_f_type->builtin_logical_s2 =
537 init_type (TYPE_CODE_BOOL,
538 gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
539 TYPE_FLAG_UNSIGNED, "logical*2", (struct objfile *) NULL);
541 builtin_f_type->builtin_integer =
542 init_type (TYPE_CODE_INT,
543 gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
544 0, "integer", (struct objfile *) NULL);
546 builtin_f_type->builtin_logical =
547 init_type (TYPE_CODE_BOOL,
548 gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
549 TYPE_FLAG_UNSIGNED, "logical*4", (struct objfile *) NULL);
551 builtin_f_type->builtin_real =
552 init_type (TYPE_CODE_FLT,
553 gdbarch_float_bit (current_gdbarch) / TARGET_CHAR_BIT,
555 "real", (struct objfile *) NULL);
557 builtin_f_type->builtin_real_s8 =
558 init_type (TYPE_CODE_FLT,
559 gdbarch_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
561 "real*8", (struct objfile *) NULL);
563 builtin_f_type->builtin_real_s16 =
564 init_type (TYPE_CODE_FLT,
565 gdbarch_long_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
567 "real*16", (struct objfile *) NULL);
569 builtin_f_type->builtin_complex_s8 =
570 init_type (TYPE_CODE_COMPLEX,
571 2 * gdbarch_float_bit (current_gdbarch) / TARGET_CHAR_BIT,
573 "complex*8", (struct objfile *) NULL);
574 TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s8)
575 = builtin_f_type->builtin_real;
577 builtin_f_type->builtin_complex_s16 =
578 init_type (TYPE_CODE_COMPLEX,
579 2 * gdbarch_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
581 "complex*16", (struct objfile *) NULL);
582 TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s16)
583 = builtin_f_type->builtin_real_s8;
585 /* We have a new size == 4 double floats for the
586 complex*32 data type */
588 builtin_f_type->builtin_complex_s32 =
589 init_type (TYPE_CODE_COMPLEX,
590 2 * gdbarch_long_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
592 "complex*32", (struct objfile *) NULL);
593 TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s32)
594 = builtin_f_type->builtin_real_s16;
596 return builtin_f_type;
599 static struct gdbarch_data *f_type_data;
601 const struct builtin_f_type *
602 builtin_f_type (struct gdbarch *gdbarch)
604 return gdbarch_data (gdbarch, f_type_data);
608 _initialize_f_language (void)
610 f_type_data = gdbarch_data_register_post_init (build_fortran_types);
612 add_language (&f_language_defn);
617 allocate_saved_bf_node (void)
621 new = (SAVED_BF_PTR) xmalloc (sizeof (SAVED_BF));
625 static SAVED_FUNCTION *
626 allocate_saved_function_node (void)
630 new = (SAVED_FUNCTION *) xmalloc (sizeof (SAVED_FUNCTION));
634 static SAVED_F77_COMMON_PTR
635 allocate_saved_f77_common_node (void)
637 SAVED_F77_COMMON_PTR new;
639 new = (SAVED_F77_COMMON_PTR) xmalloc (sizeof (SAVED_F77_COMMON));
643 static COMMON_ENTRY_PTR
644 allocate_common_entry_node (void)
646 COMMON_ENTRY_PTR new;
648 new = (COMMON_ENTRY_PTR) xmalloc (sizeof (COMMON_ENTRY));
653 SAVED_F77_COMMON_PTR head_common_list = NULL; /* Ptr to 1st saved COMMON */
654 SAVED_F77_COMMON_PTR tail_common_list = NULL; /* Ptr to last saved COMMON */
655 SAVED_F77_COMMON_PTR current_common = NULL; /* Ptr to current COMMON */
658 static SAVED_BF_PTR saved_bf_list = NULL; /* Ptr to (.bf,function)
660 static SAVED_BF_PTR saved_bf_list_end = NULL; /* Ptr to above list's end */
661 static SAVED_BF_PTR current_head_bf_list = NULL; /* Current head of above list
664 static SAVED_BF_PTR tmp_bf_ptr; /* Generic temporary for use
667 /* The following function simply enters a given common block onto
668 the global common block chain */
671 add_common_block (char *name, CORE_ADDR offset, int secnum, char *func_stab)
673 SAVED_F77_COMMON_PTR tmp;
674 char *c, *local_copy_func_stab;
676 /* If the COMMON block we are trying to add has a blank
677 name (i.e. "#BLNK_COM") then we set it to __BLANK
678 because the darn "#" character makes GDB's input
682 if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0
683 || strcmp (name, BLANK_COMMON_NAME_MF77) == 0)
687 name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1);
688 strcpy (name, BLANK_COMMON_NAME_LOCAL);
691 tmp = allocate_saved_f77_common_node ();
693 local_copy_func_stab = xmalloc (strlen (func_stab) + 1);
694 strcpy (local_copy_func_stab, func_stab);
696 tmp->name = xmalloc (strlen (name) + 1);
698 /* local_copy_func_stab is a stabstring, let us first extract the
699 function name from the stab by NULLing out the ':' character. */
703 c = strchr (local_copy_func_stab, ':');
708 error (_("Malformed function STAB found in add_common_block()"));
711 tmp->owning_function = xmalloc (strlen (local_copy_func_stab) + 1);
713 strcpy (tmp->owning_function, local_copy_func_stab);
715 strcpy (tmp->name, name);
716 tmp->offset = offset;
719 tmp->secnum = secnum;
721 current_common = tmp;
723 if (head_common_list == NULL)
725 head_common_list = tail_common_list = tmp;
729 tail_common_list->next = tmp;
730 tail_common_list = tmp;
735 /* The following function simply enters a given common entry onto
736 the "current_common" block that has been saved away. */
740 add_common_entry (struct symbol *entry_sym_ptr)
742 COMMON_ENTRY_PTR tmp;
746 /* The order of this list is important, since
747 we expect the entries to appear in decl.
748 order when we later issue "info common" calls */
750 tmp = allocate_common_entry_node ();
753 tmp->symbol = entry_sym_ptr;
755 if (current_common == NULL)
756 error (_("Attempt to add COMMON entry with no block open!"));
759 if (current_common->entries == NULL)
761 current_common->entries = tmp;
762 current_common->end_of_entries = tmp;
766 current_common->end_of_entries->next = tmp;
767 current_common->end_of_entries = tmp;
773 /* This routine finds the first encountred COMMON block named "name" */
776 static SAVED_F77_COMMON_PTR
777 find_first_common_named (char *name)
780 SAVED_F77_COMMON_PTR tmp;
782 tmp = head_common_list;
786 if (strcmp (tmp->name, name) == 0)
795 /* This routine finds the first encountred COMMON block named "name"
796 that belongs to function funcname */
799 find_common_for_function (char *name, char *funcname)
802 SAVED_F77_COMMON_PTR tmp;
804 tmp = head_common_list;
808 if (DEPRECATED_STREQ (tmp->name, name)
809 && DEPRECATED_STREQ (tmp->owning_function, funcname))
820 /* The following function is called to patch up the offsets
821 for the statics contained in the COMMON block named
825 patch_common_entries (SAVED_F77_COMMON_PTR blk, CORE_ADDR offset, int secnum)
827 COMMON_ENTRY_PTR entry;
829 blk->offset = offset; /* Keep this around for future use. */
831 entry = blk->entries;
833 while (entry != NULL)
835 SYMBOL_VALUE (entry->symbol) += offset;
836 SYMBOL_SECTION (entry->symbol) = secnum;
840 blk->secnum = secnum;
843 /* Patch all commons named "name" that need patching.Since COMMON
844 blocks occur with relative infrequency, we simply do a linear scan on
845 the name. Eventually, the best way to do this will be a
846 hashed-lookup. Secnum is the section number for the .bss section
847 (which is where common data lives). */
850 patch_all_commons_by_name (char *name, CORE_ADDR offset, int secnum)
853 SAVED_F77_COMMON_PTR tmp;
855 /* For blank common blocks, change the canonical reprsentation
858 if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0
859 || strcmp (name, BLANK_COMMON_NAME_MF77) == 0)
862 name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1);
863 strcpy (name, BLANK_COMMON_NAME_LOCAL);
866 tmp = head_common_list;
870 if (COMMON_NEEDS_PATCHING (tmp))
871 if (strcmp (tmp->name, name) == 0)
872 patch_common_entries (tmp, offset, secnum);
879 /* This macro adds the symbol-number for the start of the function
880 (the symbol number of the .bf) referenced by symnum_fcn to a
881 list. This list, in reality should be a FIFO queue but since
882 #line pragmas sometimes cause line ranges to get messed up
883 we simply create a linear list. This list can then be searched
884 first by a queueing algorithm and upon failure fall back to
888 #define ADD_BF_SYMNUM(bf_sym,fcn_sym) \
890 if (saved_bf_list == NULL) \
892 tmp_bf_ptr = allocate_saved_bf_node(); \
894 tmp_bf_ptr->symnum_bf = (bf_sym); \
895 tmp_bf_ptr->symnum_fcn = (fcn_sym); \
896 tmp_bf_ptr->next = NULL; \
898 current_head_bf_list = saved_bf_list = tmp_bf_ptr; \
899 saved_bf_list_end = tmp_bf_ptr; \
903 tmp_bf_ptr = allocate_saved_bf_node(); \
905 tmp_bf_ptr->symnum_bf = (bf_sym); \
906 tmp_bf_ptr->symnum_fcn = (fcn_sym); \
907 tmp_bf_ptr->next = NULL; \
909 saved_bf_list_end->next = tmp_bf_ptr; \
910 saved_bf_list_end = tmp_bf_ptr; \
914 /* This function frees the entire (.bf,function) list */
921 SAVED_BF_PTR tmp = saved_bf_list;
922 SAVED_BF_PTR next = NULL;
930 saved_bf_list = NULL;
934 int global_remote_debug;
939 get_bf_for_fcn (long the_function)
944 /* First use a simple queuing algorithm (i.e. look and see if the
945 item at the head of the queue is the one you want) */
947 if (saved_bf_list == NULL)
948 internal_error (__FILE__, __LINE__,
949 _("cannot get .bf node off empty list"));
951 if (current_head_bf_list != NULL)
952 if (current_head_bf_list->symnum_fcn == the_function)
954 if (global_remote_debug)
955 fprintf_unfiltered (gdb_stderr, "*");
957 tmp = current_head_bf_list;
958 current_head_bf_list = current_head_bf_list->next;
959 return (tmp->symnum_bf);
962 /* If the above did not work (probably because #line directives were
963 used in the sourcefile and they messed up our internal tables) we now do
964 the ugly linear scan */
966 if (global_remote_debug)
967 fprintf_unfiltered (gdb_stderr, "\ndefaulting to linear scan\n");
974 if (tmp->symnum_fcn == the_function)
976 if (global_remote_debug)
977 fprintf_unfiltered (gdb_stderr, "Found in %d probes\n", nprobes);
978 current_head_bf_list = tmp->next;
979 return (tmp->symnum_bf);
987 static SAVED_FUNCTION_PTR saved_function_list = NULL;
988 static SAVED_FUNCTION_PTR saved_function_list_end = NULL;
991 clear_function_list (void)
993 SAVED_FUNCTION_PTR tmp = saved_function_list;
994 SAVED_FUNCTION_PTR next = NULL;
1003 saved_function_list = NULL;