1 /* Support routines for decoding "stabs" debugging information format.
2 Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
3 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
4 Free Software Foundation, Inc.
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. */
23 /* Support routines for reading and decoding debugging information in
24 the "stabs" format. This format is used with many systems that use
25 the a.out object file format, as well as some systems that use
26 COFF or ELF where the stabs data is placed in a special section.
27 Avoid placing any object file format specific code in this file. */
30 #include "gdb_string.h"
32 #include "gdb_obstack.h"
35 #include "expression.h"
38 #include "aout/stab_gnu.h" /* We always use GNU stabs, not native */
40 #include "aout/aout64.h"
41 #include "gdb-stabs.h"
43 #include "complaints.h"
48 #include "cp-support.h"
52 /* Ask stabsread.h to define the vars it normally declares `extern'. */
55 #include "stabsread.h" /* Our own declarations */
58 extern void _initialize_stabsread (void);
60 /* The routines that read and process a complete stabs for a C struct or
61 C++ class pass lists of data member fields and lists of member function
62 fields in an instance of a field_info structure, as defined below.
63 This is part of some reorganization of low level C++ support and is
64 expected to eventually go away... (FIXME) */
70 struct nextfield
*next
;
72 /* This is the raw visibility from the stab. It is not checked
73 for being one of the visibilities we recognize, so code which
74 examines this field better be able to deal. */
80 struct next_fnfieldlist
82 struct next_fnfieldlist
*next
;
83 struct fn_fieldlist fn_fieldlist
;
89 read_one_struct_field (struct field_info
*, char **, char *,
90 struct type
*, struct objfile
*);
92 static char *get_substring (char **, int);
94 static struct type
*dbx_alloc_type (int[2], struct objfile
*);
96 static long read_huge_number (char **, int, int *);
98 static struct type
*error_type (char **, struct objfile
*);
101 patch_block_stabs (struct pending
*, struct pending_stabs
*,
104 static void fix_common_block (struct symbol
*, int);
106 static int read_type_number (char **, int *);
108 static struct type
*read_range_type (char **, int[2], struct objfile
*);
110 static struct type
*read_sun_builtin_type (char **, int[2], struct objfile
*);
112 static struct type
*read_sun_floating_type (char **, int[2],
115 static struct type
*read_enum_type (char **, struct type
*, struct objfile
*);
117 static struct type
*rs6000_builtin_type (int);
120 read_member_functions (struct field_info
*, char **, struct type
*,
124 read_struct_fields (struct field_info
*, char **, struct type
*,
128 read_baseclasses (struct field_info
*, char **, struct type
*,
132 read_tilde_fields (struct field_info
*, char **, struct type
*,
135 static int attach_fn_fields_to_type (struct field_info
*, struct type
*);
137 static int attach_fields_to_type (struct field_info
*, struct type
*,
140 static struct type
*read_struct_type (char **, struct type
*,
144 static struct type
*read_array_type (char **, struct type
*,
147 static struct field
*read_args (char **, int, struct objfile
*, int *, int *);
150 read_cpp_abbrev (struct field_info
*, char **, struct type
*,
152 #if 0 /* OBSOLETE CFront */
153 // OBSOLETE /* new functions added for cfront support */
155 // OBSOLETE static int
156 // OBSOLETE copy_cfront_struct_fields (struct field_info *, struct type *,
157 // OBSOLETE struct objfile *);
159 // OBSOLETE static char *get_cfront_method_physname (char *);
161 // OBSOLETE static int
162 // OBSOLETE read_cfront_baseclasses (struct field_info *, char **,
163 // OBSOLETE struct type *, struct objfile *);
165 // OBSOLETE static int
166 // OBSOLETE read_cfront_static_fields (struct field_info *, char **,
167 // OBSOLETE struct type *, struct objfile *);
168 // OBSOLETE static int
169 // OBSOLETE read_cfront_member_functions (struct field_info *, char **,
170 // OBSOLETE struct type *, struct objfile *);
172 // OBSOLETE /* end new functions added for cfront support */
173 #endif /* OBSOLETE CFront */
175 static char *find_name_end (char *name
);
177 static void add_live_range (struct objfile
*, struct symbol
*, CORE_ADDR
,
180 static int resolve_live_range (struct objfile
*, struct symbol
*, char *);
182 static int process_reference (char **string
);
184 static CORE_ADDR
ref_search_value (int refnum
);
186 static int resolve_symbol_reference (struct objfile
*, struct symbol
*,
189 void stabsread_clear_cache (void);
191 static const char vptr_name
[] = "_vptr$";
192 static const char vb_name
[] = "_vb$";
194 /* Define this as 1 if a pcc declaration of a char or short argument
195 gives the correct address. Otherwise assume pcc gives the
196 address of the corresponding int, which is not the same on a
197 big-endian machine. */
199 #if !defined (BELIEVE_PCC_PROMOTION)
200 #define BELIEVE_PCC_PROMOTION 0
202 #if !defined (BELIEVE_PCC_PROMOTION_TYPE)
203 #define BELIEVE_PCC_PROMOTION_TYPE 0
207 invalid_cpp_abbrev_complaint (const char *arg1
)
209 complaint (&symfile_complaints
, "invalid C++ abbreviation `%s'", arg1
);
213 reg_value_complaint (int arg1
, int arg2
, const char *arg3
)
215 complaint (&symfile_complaints
,
216 "register number %d too large (max %d) in symbol %s", arg1
, arg2
,
221 stabs_general_complaint (const char *arg1
)
223 complaint (&symfile_complaints
, "%s", arg1
);
227 lrs_general_complaint (const char *arg1
)
229 complaint (&symfile_complaints
, "%s", arg1
);
232 /* Make a list of forward references which haven't been defined. */
234 static struct type
**undef_types
;
235 static int undef_types_allocated
;
236 static int undef_types_length
;
237 static struct symbol
*current_symbol
= NULL
;
239 /* Check for and handle cretinous stabs symbol name continuation! */
240 #define STABS_CONTINUE(pp,objfile) \
242 if (**(pp) == '\\' || (**(pp) == '?' && (*(pp))[1] == '\0')) \
243 *(pp) = next_symbol_text (objfile); \
247 /* Look up a dbx type-number pair. Return the address of the slot
248 where the type for that number-pair is stored.
249 The number-pair is in TYPENUMS.
251 This can be used for finding the type associated with that pair
252 or for associating a new type with the pair. */
255 dbx_lookup_type (int typenums
[2])
257 register int filenum
= typenums
[0];
258 register int index
= typenums
[1];
260 register int real_filenum
;
261 register struct header_file
*f
;
264 if (filenum
== -1) /* -1,-1 is for temporary types. */
267 if (filenum
< 0 || filenum
>= n_this_object_header_files
)
269 complaint (&symfile_complaints
,
270 "Invalid symbol data: type number (%d,%d) out of range at symtab pos %d.",
271 filenum
, index
, symnum
);
279 /* Caller wants address of address of type. We think
280 that negative (rs6k builtin) types will never appear as
281 "lvalues", (nor should they), so we stuff the real type
282 pointer into a temp, and return its address. If referenced,
283 this will do the right thing. */
284 static struct type
*temp_type
;
286 temp_type
= rs6000_builtin_type (index
);
290 /* Type is defined outside of header files.
291 Find it in this object file's type vector. */
292 if (index
>= type_vector_length
)
294 old_len
= type_vector_length
;
297 type_vector_length
= INITIAL_TYPE_VECTOR_LENGTH
;
298 type_vector
= (struct type
**)
299 xmalloc (type_vector_length
* sizeof (struct type
*));
301 while (index
>= type_vector_length
)
303 type_vector_length
*= 2;
305 type_vector
= (struct type
**)
306 xrealloc ((char *) type_vector
,
307 (type_vector_length
* sizeof (struct type
*)));
308 memset (&type_vector
[old_len
], 0,
309 (type_vector_length
- old_len
) * sizeof (struct type
*));
311 return (&type_vector
[index
]);
315 real_filenum
= this_object_header_files
[filenum
];
317 if (real_filenum
>= N_HEADER_FILES (current_objfile
))
319 struct type
*temp_type
;
320 struct type
**temp_type_p
;
322 warning ("GDB internal error: bad real_filenum");
325 temp_type
= init_type (TYPE_CODE_ERROR
, 0, 0, NULL
, NULL
);
326 temp_type_p
= (struct type
**) xmalloc (sizeof (struct type
*));
327 *temp_type_p
= temp_type
;
331 f
= HEADER_FILES (current_objfile
) + real_filenum
;
333 f_orig_length
= f
->length
;
334 if (index
>= f_orig_length
)
336 while (index
>= f
->length
)
340 f
->vector
= (struct type
**)
341 xrealloc ((char *) f
->vector
, f
->length
* sizeof (struct type
*));
342 memset (&f
->vector
[f_orig_length
], 0,
343 (f
->length
- f_orig_length
) * sizeof (struct type
*));
345 return (&f
->vector
[index
]);
349 /* Make sure there is a type allocated for type numbers TYPENUMS
350 and return the type object.
351 This can create an empty (zeroed) type object.
352 TYPENUMS may be (-1, -1) to return a new type object that is not
353 put into the type vector, and so may not be referred to by number. */
356 dbx_alloc_type (int typenums
[2], struct objfile
*objfile
)
358 register struct type
**type_addr
;
360 if (typenums
[0] == -1)
362 return (alloc_type (objfile
));
365 type_addr
= dbx_lookup_type (typenums
);
367 /* If we are referring to a type not known at all yet,
368 allocate an empty type for it.
369 We will fill it in later if we find out how. */
372 *type_addr
= alloc_type (objfile
);
378 /* for all the stabs in a given stab vector, build appropriate types
379 and fix their symbols in given symbol vector. */
382 patch_block_stabs (struct pending
*symbols
, struct pending_stabs
*stabs
,
383 struct objfile
*objfile
)
393 /* for all the stab entries, find their corresponding symbols and
394 patch their types! */
396 for (ii
= 0; ii
< stabs
->count
; ++ii
)
398 name
= stabs
->stab
[ii
];
399 pp
= (char *) strchr (name
, ':');
403 pp
= (char *) strchr (pp
, ':');
405 sym
= find_symbol_in_list (symbols
, name
, pp
- name
);
408 /* FIXME-maybe: it would be nice if we noticed whether
409 the variable was defined *anywhere*, not just whether
410 it is defined in this compilation unit. But neither
411 xlc or GCC seem to need such a definition, and until
412 we do psymtabs (so that the minimal symbols from all
413 compilation units are available now), I'm not sure
414 how to get the information. */
416 /* On xcoff, if a global is defined and never referenced,
417 ld will remove it from the executable. There is then
418 a N_GSYM stab for it, but no regular (C_EXT) symbol. */
419 sym
= (struct symbol
*)
420 obstack_alloc (&objfile
->symbol_obstack
,
421 sizeof (struct symbol
));
423 memset (sym
, 0, sizeof (struct symbol
));
424 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
425 SYMBOL_CLASS (sym
) = LOC_OPTIMIZED_OUT
;
427 obsavestring (name
, pp
- name
, &objfile
->symbol_obstack
);
429 if (*(pp
- 1) == 'F' || *(pp
- 1) == 'f')
431 /* I don't think the linker does this with functions,
432 so as far as I know this is never executed.
433 But it doesn't hurt to check. */
435 lookup_function_type (read_type (&pp
, objfile
));
439 SYMBOL_TYPE (sym
) = read_type (&pp
, objfile
);
441 add_symbol_to_list (sym
, &global_symbols
);
446 if (*(pp
- 1) == 'F' || *(pp
- 1) == 'f')
449 lookup_function_type (read_type (&pp
, objfile
));
453 SYMBOL_TYPE (sym
) = read_type (&pp
, objfile
);
461 /* Read a number by which a type is referred to in dbx data,
462 or perhaps read a pair (FILENUM, TYPENUM) in parentheses.
463 Just a single number N is equivalent to (0,N).
464 Return the two numbers by storing them in the vector TYPENUMS.
465 TYPENUMS will then be used as an argument to dbx_lookup_type.
467 Returns 0 for success, -1 for error. */
470 read_type_number (register char **pp
, register int *typenums
)
476 typenums
[0] = read_huge_number (pp
, ',', &nbits
);
479 typenums
[1] = read_huge_number (pp
, ')', &nbits
);
486 typenums
[1] = read_huge_number (pp
, 0, &nbits
);
494 #define VISIBILITY_PRIVATE '0' /* Stabs character for private field */
495 #define VISIBILITY_PROTECTED '1' /* Stabs character for protected fld */
496 #define VISIBILITY_PUBLIC '2' /* Stabs character for public field */
497 #define VISIBILITY_IGNORE '9' /* Optimized out or zero length */
499 #if 0 /* OBSOLETE CFront */
500 // OBSOLETE #define CFRONT_VISIBILITY_PRIVATE '2' /* Stabs character for private field */
501 // OBSOLETE #define CFRONT_VISIBILITY_PUBLIC '1' /* Stabs character for public field */
503 // OBSOLETE /* This code added to support parsing of ARM/Cfront stabs strings */
505 // OBSOLETE /* Get substring from string up to char c, advance string pointer past
506 // OBSOLETE suibstring. */
508 // OBSOLETE static char *
509 // OBSOLETE get_substring (char **p, int c)
511 // OBSOLETE char *str;
512 // OBSOLETE str = *p;
513 // OBSOLETE *p = strchr (*p, c);
521 // OBSOLETE return str;
524 // OBSOLETE /* Physname gets strcat'd onto sname in order to recreate the mangled
525 // OBSOLETE name (see funtion gdb_mangle_name in gdbtypes.c). For cfront, make
526 // OBSOLETE the physname look like that of g++ - take out the initial mangling
527 // OBSOLETE eg: for sname="a" and fname="foo__1aFPFs_i" return "FPFs_i" */
529 // OBSOLETE static char *
530 // OBSOLETE get_cfront_method_physname (char *fname)
532 // OBSOLETE int len = 0;
533 // OBSOLETE /* FIXME would like to make this generic for g++ too, but
534 // OBSOLETE that is already handled in read_member_funcctions */
535 // OBSOLETE char *p = fname;
537 // OBSOLETE /* search ahead to find the start of the mangled suffix */
538 // OBSOLETE if (*p == '_' && *(p + 1) == '_') /* compiler generated; probably a ctor/dtor */
540 // OBSOLETE while (p && (unsigned) ((p + 1) - fname) < strlen (fname) && *(p + 1) != '_')
541 // OBSOLETE p = strchr (p, '_');
542 // OBSOLETE if (!(p && *p == '_' && *(p + 1) == '_'))
543 // OBSOLETE error ("Invalid mangled function name %s", fname);
544 // OBSOLETE p += 2; /* advance past '__' */
546 // OBSOLETE /* struct name length and name of type should come next; advance past it */
547 // OBSOLETE while (isdigit (*p))
549 // OBSOLETE len = len * 10 + (*p - '0');
552 // OBSOLETE p += len;
554 // OBSOLETE return p;
557 // OBSOLETE static void
558 // OBSOLETE msg_unknown_complaint (const char *arg1)
560 // OBSOLETE complaint (&symfile_complaints, "Unsupported token in stabs string %s", arg1);
563 // OBSOLETE /* Read base classes within cfront class definition.
564 // OBSOLETE eg: A:ZcA;1@Bpub v2@Bvirpri;__ct__1AFv func__1AFv *sfunc__1AFv ;as__1A ;;
565 // OBSOLETE ^^^^^^^^^^^^^^^^^^
567 // OBSOLETE A:ZcA;;foopri__1AFv foopro__1AFv __ct__1AFv __ct__1AFRC1A foopub__1AFv ;;;
571 // OBSOLETE static int
572 // OBSOLETE read_cfront_baseclasses (struct field_info *fip, char **pp, struct type *type,
573 // OBSOLETE struct objfile *objfile)
575 // OBSOLETE int bnum = 0;
578 // OBSOLETE struct nextfield *new;
580 // OBSOLETE if (**pp == ';') /* no base classes; return */
583 // OBSOLETE return 1;
586 // OBSOLETE /* first count base classes so we can allocate space before parsing */
587 // OBSOLETE for (p = *pp; p && *p && *p != ';'; p++)
589 // OBSOLETE if (*p == ' ')
592 // OBSOLETE bnum++; /* add one more for last one */
594 // OBSOLETE /* now parse the base classes until we get to the start of the methods
595 // OBSOLETE (code extracted and munged from read_baseclasses) */
596 // OBSOLETE ALLOCATE_CPLUS_STRUCT_TYPE (type);
597 // OBSOLETE TYPE_N_BASECLASSES (type) = bnum;
599 // OBSOLETE /* allocate space */
601 // OBSOLETE int num_bytes = B_BYTES (TYPE_N_BASECLASSES (type));
602 // OBSOLETE char *pointer;
604 // OBSOLETE pointer = (char *) TYPE_ALLOC (type, num_bytes);
605 // OBSOLETE TYPE_FIELD_VIRTUAL_BITS (type) = (B_TYPE *) pointer;
607 // OBSOLETE B_CLRALL (TYPE_FIELD_VIRTUAL_BITS (type), TYPE_N_BASECLASSES (type));
609 // OBSOLETE for (i = 0; i < TYPE_N_BASECLASSES (type); i++)
611 // OBSOLETE new = (struct nextfield *) xmalloc (sizeof (struct nextfield));
612 // OBSOLETE make_cleanup (xfree, new);
613 // OBSOLETE memset (new, 0, sizeof (struct nextfield));
614 // OBSOLETE new->next = fip->list;
615 // OBSOLETE fip->list = new;
616 // OBSOLETE FIELD_BITSIZE (new->field) = 0; /* this should be an unpacked field! */
618 // OBSOLETE STABS_CONTINUE (pp, objfile);
620 // OBSOLETE /* virtual? eg: v2@Bvir */
621 // OBSOLETE if (**pp == 'v')
623 // OBSOLETE SET_TYPE_FIELD_VIRTUAL (type, i);
627 // OBSOLETE /* access? eg: 2@Bvir */
628 // OBSOLETE /* Note: protected inheritance not supported in cfront */
629 // OBSOLETE switch (*(*pp)++)
631 // OBSOLETE case CFRONT_VISIBILITY_PRIVATE:
632 // OBSOLETE new->visibility = VISIBILITY_PRIVATE;
634 // OBSOLETE case CFRONT_VISIBILITY_PUBLIC:
635 // OBSOLETE new->visibility = VISIBILITY_PUBLIC;
638 // OBSOLETE /* Bad visibility format. Complain and treat it as
639 // OBSOLETE public. */
641 // OBSOLETE complaint (&symfile_complaints,
642 // OBSOLETE "Unknown visibility `%c' for baseclass",
643 // OBSOLETE new->visibility);
644 // OBSOLETE new->visibility = VISIBILITY_PUBLIC;
648 // OBSOLETE /* "@" comes next - eg: @Bvir */
649 // OBSOLETE if (**pp != '@')
651 // OBSOLETE msg_unknown_complaint (*pp);
652 // OBSOLETE return 1;
657 // OBSOLETE /* Set the bit offset of the portion of the object corresponding
658 // OBSOLETE to this baseclass. Always zero in the absence of
659 // OBSOLETE multiple inheritance. */
660 // OBSOLETE /* Unable to read bit position from stabs;
661 // OBSOLETE Assuming no multiple inheritance for now FIXME! */
662 // OBSOLETE /* We may have read this in the structure definition;
663 // OBSOLETE now we should fixup the members to be the actual base classes */
664 // OBSOLETE FIELD_BITPOS (new->field) = 0;
666 // OBSOLETE /* Get the base class name and type */
668 // OBSOLETE char *bname; /* base class name */
669 // OBSOLETE struct symbol *bsym; /* base class */
670 // OBSOLETE char *p1, *p2;
671 // OBSOLETE p1 = strchr (*pp, ' ');
672 // OBSOLETE p2 = strchr (*pp, ';');
673 // OBSOLETE if (p1 < p2)
674 // OBSOLETE bname = get_substring (pp, ' ');
676 // OBSOLETE bname = get_substring (pp, ';');
677 // OBSOLETE if (!bname || !*bname)
679 // OBSOLETE msg_unknown_complaint (*pp);
680 // OBSOLETE return 1;
682 // OBSOLETE /* FIXME! attach base info to type */
683 // OBSOLETE bsym = lookup_symbol (bname, 0, STRUCT_NAMESPACE, 0, 0); /*demangled_name */
684 // OBSOLETE if (bsym)
686 // OBSOLETE new->field.type = SYMBOL_TYPE (bsym);
687 // OBSOLETE new->field.name = type_name_no_tag (new->field.type);
691 // OBSOLETE complaint (&symfile_complaints, "Unable to find base type for %s",
693 // OBSOLETE return 1;
697 // OBSOLETE /* If more base classes to parse, loop again.
698 // OBSOLETE We ate the last ' ' or ';' in get_substring,
699 // OBSOLETE so on exit we will have skipped the trailing ';' */
700 // OBSOLETE /* if invalid, return 0; add code to detect - FIXME! */
702 // OBSOLETE return 1;
705 // OBSOLETE /* read cfront member functions.
706 // OBSOLETE pp points to string starting with list of functions
707 // OBSOLETE eg: A:ZcA;1@Bpub v2@Bvirpri;__ct__1AFv func__1AFv *sfunc__1AFv ;as__1A ;;
708 // OBSOLETE ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
709 // OBSOLETE A:ZcA;;foopri__1AFv foopro__1AFv __ct__1AFv __ct__1AFRC1A foopub__1AFv ;;;
710 // OBSOLETE ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
713 // OBSOLETE static int
714 // OBSOLETE read_cfront_member_functions (struct field_info *fip, char **pp,
715 // OBSOLETE struct type *type, struct objfile *objfile)
717 // OBSOLETE /* This code extracted from read_member_functions
718 // OBSOLETE so as to do the similar thing for our funcs */
720 // OBSOLETE int nfn_fields = 0;
721 // OBSOLETE int length = 0;
722 // OBSOLETE /* Total number of member functions defined in this class. If the class
723 // OBSOLETE defines two `f' functions, and one `g' function, then this will have
724 // OBSOLETE the value 3. */
725 // OBSOLETE int total_length = 0;
727 // OBSOLETE struct next_fnfield
729 // OBSOLETE struct next_fnfield *next;
730 // OBSOLETE struct fn_field fn_field;
732 // OBSOLETE *sublist;
733 // OBSOLETE struct type *look_ahead_type;
734 // OBSOLETE struct next_fnfieldlist *new_fnlist;
735 // OBSOLETE struct next_fnfield *new_sublist;
736 // OBSOLETE char *main_fn_name;
737 // OBSOLETE char *fname;
738 // OBSOLETE struct symbol *ref_func = 0;
740 // OBSOLETE /* Process each list until we find the end of the member functions.
741 // OBSOLETE eg: p = "__ct__1AFv foo__1AFv ;;;" */
743 // OBSOLETE STABS_CONTINUE (pp, objfile); /* handle \\ */
745 // OBSOLETE while (**pp != ';' && (fname = get_substring (pp, ' '), fname))
747 // OBSOLETE int is_static = 0;
748 // OBSOLETE int sublist_count = 0;
749 // OBSOLETE char *pname;
750 // OBSOLETE if (fname[0] == '*') /* static member */
752 // OBSOLETE is_static = 1;
753 // OBSOLETE sublist_count++;
756 // OBSOLETE ref_func = lookup_symbol (fname, 0, VAR_NAMESPACE, 0, 0); /* demangled name */
757 // OBSOLETE if (!ref_func)
759 // OBSOLETE complaint (&symfile_complaints,
760 // OBSOLETE "Unable to find function symbol for %s", fname);
761 // OBSOLETE continue;
763 // OBSOLETE sublist = NULL;
764 // OBSOLETE look_ahead_type = NULL;
765 // OBSOLETE length = 0;
767 // OBSOLETE new_fnlist = (struct next_fnfieldlist *)
768 // OBSOLETE xmalloc (sizeof (struct next_fnfieldlist));
769 // OBSOLETE make_cleanup (xfree, new_fnlist);
770 // OBSOLETE memset (new_fnlist, 0, sizeof (struct next_fnfieldlist));
772 // OBSOLETE /* The following is code to work around cfront generated stabs.
773 // OBSOLETE The stabs contains full mangled name for each field.
774 // OBSOLETE We try to demangle the name and extract the field name out of it. */
776 // OBSOLETE char *dem, *dem_p, *dem_args;
777 // OBSOLETE int dem_len;
778 // OBSOLETE dem = cplus_demangle (fname, DMGL_ANSI | DMGL_PARAMS);
779 // OBSOLETE if (dem != NULL)
781 // OBSOLETE dem_p = strrchr (dem, ':');
782 // OBSOLETE if (dem_p != 0 && *(dem_p - 1) == ':')
784 // OBSOLETE /* get rid of args */
785 // OBSOLETE dem_args = strchr (dem_p, '(');
786 // OBSOLETE if (dem_args == NULL)
787 // OBSOLETE dem_len = strlen (dem_p);
789 // OBSOLETE dem_len = dem_args - dem_p;
790 // OBSOLETE main_fn_name =
791 // OBSOLETE obsavestring (dem_p, dem_len, &objfile->type_obstack);
795 // OBSOLETE main_fn_name =
796 // OBSOLETE obsavestring (fname, strlen (fname), &objfile->type_obstack);
798 // OBSOLETE } /* end of code for cfront work around */
800 // OBSOLETE new_fnlist->fn_fieldlist.name = main_fn_name;
802 // OBSOLETE /*-------------------------------------------------*/
803 // OBSOLETE /* Set up the sublists
804 // OBSOLETE Sublists are stuff like args, static, visibility, etc.
805 // OBSOLETE so in ARM, we have to set that info some other way.
806 // OBSOLETE Multiple sublists happen if overloading
807 // OBSOLETE eg: foo::26=##1;:;2A.;
808 // OBSOLETE In g++, we'd loop here thru all the sublists... */
810 // OBSOLETE new_sublist =
811 // OBSOLETE (struct next_fnfield *) xmalloc (sizeof (struct next_fnfield));
812 // OBSOLETE make_cleanup (xfree, new_sublist);
813 // OBSOLETE memset (new_sublist, 0, sizeof (struct next_fnfield));
815 // OBSOLETE /* eat 1; from :;2A.; */
816 // OBSOLETE new_sublist->fn_field.type = SYMBOL_TYPE (ref_func); /* normally takes a read_type */
817 // OBSOLETE /* Make this type look like a method stub for gdb */
818 // OBSOLETE TYPE_FLAGS (new_sublist->fn_field.type) |= TYPE_FLAG_STUB;
819 // OBSOLETE TYPE_CODE (new_sublist->fn_field.type) = TYPE_CODE_METHOD;
821 // OBSOLETE /* If this is just a stub, then we don't have the real name here. */
822 // OBSOLETE if (TYPE_STUB (new_sublist->fn_field.type))
824 // OBSOLETE if (!TYPE_DOMAIN_TYPE (new_sublist->fn_field.type))
825 // OBSOLETE TYPE_DOMAIN_TYPE (new_sublist->fn_field.type) = type;
826 // OBSOLETE new_sublist->fn_field.is_stub = 1;
829 // OBSOLETE /* physname used later in mangling; eg PFs_i,5 for foo__1aFPFs_i
830 // OBSOLETE physname gets strcat'd in order to recreate the onto mangled name */
831 // OBSOLETE pname = get_cfront_method_physname (fname);
832 // OBSOLETE new_sublist->fn_field.physname = savestring (pname, strlen (pname));
835 // OBSOLETE /* Set this member function's visibility fields.
836 // OBSOLETE Unable to distinguish access from stabs definition!
837 // OBSOLETE Assuming public for now. FIXME!
838 // OBSOLETE (for private, set new_sublist->fn_field.is_private = 1,
839 // OBSOLETE for public, set new_sublist->fn_field.is_protected = 1) */
841 // OBSOLETE /* Unable to distinguish const/volatile from stabs definition!
842 // OBSOLETE Assuming normal for now. FIXME! */
844 // OBSOLETE new_sublist->fn_field.is_const = 0;
845 // OBSOLETE new_sublist->fn_field.is_volatile = 0; /* volatile not implemented in cfront */
847 // OBSOLETE /* Set virtual/static function info
848 // OBSOLETE How to get vtable offsets ?
849 // OBSOLETE Assuming normal for now FIXME!!
850 // OBSOLETE For vtables, figure out from whence this virtual function came.
851 // OBSOLETE It may belong to virtual function table of
852 // OBSOLETE one of its baseclasses.
854 // OBSOLETE new_sublist -> fn_field.voffset = vtable offset,
855 // OBSOLETE new_sublist -> fn_field.fcontext = look_ahead_type;
856 // OBSOLETE where look_ahead_type is type of baseclass */
857 // OBSOLETE if (is_static)
858 // OBSOLETE new_sublist->fn_field.voffset = VOFFSET_STATIC;
859 // OBSOLETE else /* normal member function. */
860 // OBSOLETE new_sublist->fn_field.voffset = 0;
861 // OBSOLETE new_sublist->fn_field.fcontext = 0;
864 // OBSOLETE /* Prepare new sublist */
865 // OBSOLETE new_sublist->next = sublist;
866 // OBSOLETE sublist = new_sublist;
867 // OBSOLETE length++;
869 // OBSOLETE /* In g++, we loop thu sublists - now we set from functions. */
870 // OBSOLETE new_fnlist->fn_fieldlist.fn_fields = (struct fn_field *)
871 // OBSOLETE obstack_alloc (&objfile->type_obstack,
872 // OBSOLETE sizeof (struct fn_field) * length);
873 // OBSOLETE memset (new_fnlist->fn_fieldlist.fn_fields, 0,
874 // OBSOLETE sizeof (struct fn_field) * length);
875 // OBSOLETE for (i = length; (i--, sublist); sublist = sublist->next)
877 // OBSOLETE new_fnlist->fn_fieldlist.fn_fields[i] = sublist->fn_field;
880 // OBSOLETE new_fnlist->fn_fieldlist.length = length;
881 // OBSOLETE new_fnlist->next = fip->fnlist;
882 // OBSOLETE fip->fnlist = new_fnlist;
883 // OBSOLETE nfn_fields++;
884 // OBSOLETE total_length += length;
885 // OBSOLETE STABS_CONTINUE (pp, objfile); /* handle \\ */
886 // OBSOLETE } /* end of loop */
888 // OBSOLETE if (nfn_fields)
890 // OBSOLETE /* type should already have space */
891 // OBSOLETE TYPE_FN_FIELDLISTS (type) = (struct fn_fieldlist *)
892 // OBSOLETE TYPE_ALLOC (type, sizeof (struct fn_fieldlist) * nfn_fields);
893 // OBSOLETE memset (TYPE_FN_FIELDLISTS (type), 0,
894 // OBSOLETE sizeof (struct fn_fieldlist) * nfn_fields);
895 // OBSOLETE TYPE_NFN_FIELDS (type) = nfn_fields;
896 // OBSOLETE TYPE_NFN_FIELDS_TOTAL (type) = total_length;
899 // OBSOLETE /* end of scope for reading member func */
901 // OBSOLETE /* eg: ";;" */
903 // OBSOLETE /* Skip trailing ';' and bump count of number of fields seen */
904 // OBSOLETE if (**pp == ';')
907 // OBSOLETE return 0;
908 // OBSOLETE return 1;
911 // OBSOLETE /* This routine fixes up partial cfront types that were created
912 // OBSOLETE while parsing the stabs. The main need for this function is
913 // OBSOLETE to add information such as methods to classes.
914 // OBSOLETE Examples of "p": "sA;;__ct__1AFv foo__1AFv ;;;" */
916 // OBSOLETE resolve_cfront_continuation (struct objfile *objfile, struct symbol *sym,
919 // OBSOLETE struct symbol *ref_sym = 0;
920 // OBSOLETE char *sname;
921 // OBSOLETE /* snarfed from read_struct_type */
922 // OBSOLETE struct field_info fi;
923 // OBSOLETE struct type *type;
924 // OBSOLETE struct cleanup *back_to;
926 // OBSOLETE /* Need to make sure that fi isn't gunna conflict with struct
927 // OBSOLETE in case struct already had some fnfs */
928 // OBSOLETE fi.list = NULL;
929 // OBSOLETE fi.fnlist = NULL;
930 // OBSOLETE back_to = make_cleanup (null_cleanup, 0);
932 // OBSOLETE /* We only accept structs, classes and unions at the moment.
933 // OBSOLETE Other continuation types include t (typedef), r (long dbl), ...
934 // OBSOLETE We may want to add support for them as well;
935 // OBSOLETE right now they are handled by duplicating the symbol information
936 // OBSOLETE into the type information (see define_symbol) */
937 // OBSOLETE if (*p != 's' /* structs */
938 // OBSOLETE && *p != 'c' /* class */
939 // OBSOLETE && *p != 'u') /* union */
940 // OBSOLETE return 0; /* only handle C++ types */
943 // OBSOLETE /* Get symbol typs name and validate
944 // OBSOLETE eg: p = "A;;__ct__1AFv foo__1AFv ;;;" */
945 // OBSOLETE sname = get_substring (&p, ';');
946 // OBSOLETE if (!sname || strcmp (sname, SYMBOL_NAME (sym)))
947 // OBSOLETE error ("Internal error: base symbol type name does not match\n");
949 // OBSOLETE /* Find symbol's internal gdb reference using demangled_name.
950 // OBSOLETE This is the real sym that we want;
951 // OBSOLETE sym was a temp hack to make debugger happy */
952 // OBSOLETE ref_sym = lookup_symbol (SYMBOL_NAME (sym), 0, STRUCT_NAMESPACE, 0, 0);
953 // OBSOLETE type = SYMBOL_TYPE (ref_sym);
956 // OBSOLETE /* Now read the baseclasses, if any, read the regular C struct or C++
957 // OBSOLETE class member fields, attach the fields to the type, read the C++
958 // OBSOLETE member functions, attach them to the type, and then read any tilde
959 // OBSOLETE field (baseclass specifier for the class holding the main vtable). */
961 // OBSOLETE if (!read_cfront_baseclasses (&fi, &p, type, objfile)
962 // OBSOLETE /* g++ does this next, but cfront already did this:
963 // OBSOLETE || !read_struct_fields (&fi, &p, type, objfile) */
964 // OBSOLETE || !copy_cfront_struct_fields (&fi, type, objfile)
965 // OBSOLETE || !read_cfront_member_functions (&fi, &p, type, objfile)
966 // OBSOLETE || !read_cfront_static_fields (&fi, &p, type, objfile)
967 // OBSOLETE || !attach_fields_to_type (&fi, type, objfile)
968 // OBSOLETE || !attach_fn_fields_to_type (&fi, type)
969 // OBSOLETE /* g++ does this next, but cfront doesn't seem to have this:
970 // OBSOLETE || !read_tilde_fields (&fi, &p, type, objfile) */
973 // OBSOLETE type = error_type (&p, objfile);
976 // OBSOLETE do_cleanups (back_to);
977 // OBSOLETE return 0;
979 // OBSOLETE /* End of code added to support parsing of ARM/Cfront stabs strings */
980 #endif /* OBSOLETE CFront */
982 /* This routine fixes up symbol references/aliases to point to the original
983 symbol definition. Returns 0 on failure, non-zero on success. */
986 resolve_symbol_reference (struct objfile
*objfile
, struct symbol
*sym
, char *p
)
989 struct symbol
*ref_sym
= 0;
990 struct alias_list
*alias
;
992 /* If this is not a symbol reference return now. */
996 /* Use "#<num>" as the name; we'll fix the name later.
997 We stored the original symbol name as "#<id>=<name>"
998 so we can now search for "#<id>" to resolving the reference.
999 We'll fix the names later by removing the "#<id>" or "#<id>=" */
1001 /*---------------------------------------------------------*/
1002 /* Get the reference id number, and
1003 advance p past the names so we can parse the rest.
1004 eg: id=2 for p : "2=", "2=z:r(0,1)" "2:r(0,1);l(#5,#6),l(#7,#4)" */
1005 /*---------------------------------------------------------*/
1007 /* This gets reference name from string. sym may not have a name. */
1009 /* Get the reference number associated with the reference id in the
1010 gdb stab string. From that reference number, get the main/primary
1011 symbol for this alias. */
1012 refnum
= process_reference (&p
);
1013 ref_sym
= ref_search (refnum
);
1016 lrs_general_complaint ("symbol for reference not found");
1020 /* Parse the stab of the referencing symbol
1021 now that we have the referenced symbol.
1022 Add it as a new symbol and a link back to the referenced symbol.
1023 eg: p : "=", "=z:r(0,1)" ":r(0,1);l(#5,#6),l(#7,#4)" */
1026 /* If the stab symbol table and string contain:
1027 RSYM 0 5 00000000 868 #15=z:r(0,1)
1028 LBRAC 0 0 00000000 899 #5=
1029 SLINE 0 16 00000003 923 #6=
1030 Then the same symbols can be later referenced by:
1031 RSYM 0 5 00000000 927 #15:r(0,1);l(#5,#6)
1032 This is used in live range splitting to:
1033 1) specify that a symbol (#15) is actually just a new storage
1034 class for a symbol (#15=z) which was previously defined.
1035 2) specify that the beginning and ending ranges for a symbol
1036 (#15) are the values of the beginning (#5) and ending (#6)
1039 /* Read number as reference id.
1040 eg: p : "=", "=z:r(0,1)" ":r(0,1);l(#5,#6),l(#7,#4)" */
1041 /* FIXME! Might I want to use SYMBOL_CLASS (sym) = LOC_OPTIMIZED_OUT;
1042 in case of "l(0,0)"? */
1044 /*--------------------------------------------------*/
1045 /* Add this symbol to the reference list. */
1046 /*--------------------------------------------------*/
1048 alias
= (struct alias_list
*) obstack_alloc (&objfile
->type_obstack
,
1049 sizeof (struct alias_list
));
1052 lrs_general_complaint ("Unable to allocate alias list memory");
1059 if (!SYMBOL_ALIASES (ref_sym
))
1061 SYMBOL_ALIASES (ref_sym
) = alias
;
1065 struct alias_list
*temp
;
1067 /* Get to the end of the list. */
1068 for (temp
= SYMBOL_ALIASES (ref_sym
);
1075 /* Want to fix up name so that other functions (eg. valops)
1076 will correctly print the name.
1077 Don't add_symbol_to_list so that lookup_symbol won't find it.
1078 nope... needed for fixups. */
1079 SYMBOL_NAME (sym
) = SYMBOL_NAME (ref_sym
);
1085 /* Structure for storing pointers to reference definitions for fast lookup
1086 during "process_later". */
1095 #define MAX_CHUNK_REFS 100
1096 #define REF_CHUNK_SIZE (MAX_CHUNK_REFS * sizeof (struct ref_map))
1097 #define REF_MAP_SIZE(ref_chunk) ((ref_chunk) * REF_CHUNK_SIZE)
1099 static struct ref_map
*ref_map
;
1101 /* Ptr to free cell in chunk's linked list. */
1102 static int ref_count
= 0;
1104 /* Number of chunks malloced. */
1105 static int ref_chunk
= 0;
1107 /* This file maintains a cache of stabs aliases found in the symbol
1108 table. If the symbol table changes, this cache must be cleared
1109 or we are left holding onto data in invalid obstacks. */
1111 stabsread_clear_cache (void)
1117 /* Create array of pointers mapping refids to symbols and stab strings.
1118 Add pointers to reference definition symbols and/or their values as we
1119 find them, using their reference numbers as our index.
1120 These will be used later when we resolve references. */
1122 ref_add (int refnum
, struct symbol
*sym
, char *stabs
, CORE_ADDR value
)
1126 if (refnum
>= ref_count
)
1127 ref_count
= refnum
+ 1;
1128 if (ref_count
> ref_chunk
* MAX_CHUNK_REFS
)
1130 int new_slots
= ref_count
- ref_chunk
* MAX_CHUNK_REFS
;
1131 int new_chunks
= new_slots
/ MAX_CHUNK_REFS
+ 1;
1132 ref_map
= (struct ref_map
*)
1133 xrealloc (ref_map
, REF_MAP_SIZE (ref_chunk
+ new_chunks
));
1134 memset (ref_map
+ ref_chunk
* MAX_CHUNK_REFS
, 0, new_chunks
* REF_CHUNK_SIZE
);
1135 ref_chunk
+= new_chunks
;
1137 ref_map
[refnum
].stabs
= stabs
;
1138 ref_map
[refnum
].sym
= sym
;
1139 ref_map
[refnum
].value
= value
;
1142 /* Return defined sym for the reference REFNUM. */
1144 ref_search (int refnum
)
1146 if (refnum
< 0 || refnum
> ref_count
)
1148 return ref_map
[refnum
].sym
;
1151 /* Return value for the reference REFNUM. */
1154 ref_search_value (int refnum
)
1156 if (refnum
< 0 || refnum
> ref_count
)
1158 return ref_map
[refnum
].value
;
1161 /* Parse a reference id in STRING and return the resulting
1162 reference number. Move STRING beyond the reference id. */
1165 process_reference (char **string
)
1170 if (**string
!= '#')
1173 /* Advance beyond the initial '#'. */
1176 /* Read number as reference id. */
1177 while (*p
&& isdigit (*p
))
1179 refnum
= refnum
* 10 + *p
- '0';
1186 /* If STRING defines a reference, store away a pointer to the reference
1187 definition for later use. Return the reference number. */
1190 symbol_reference_defined (char **string
)
1195 refnum
= process_reference (&p
);
1197 /* Defining symbols end in '=' */
1200 /* Symbol is being defined here. */
1206 /* Must be a reference. Either the symbol has already been defined,
1207 or this is a forward reference to it. */
1215 define_symbol (CORE_ADDR valu
, char *string
, int desc
, int type
,
1216 struct objfile
*objfile
)
1218 register struct symbol
*sym
;
1219 char *p
= (char *) find_name_end (string
);
1224 /* We would like to eliminate nameless symbols, but keep their types.
1225 E.g. stab entry ":t10=*2" should produce a type 10, which is a pointer
1226 to type 2, but, should not create a symbol to address that type. Since
1227 the symbol will be nameless, there is no way any user can refer to it. */
1231 /* Ignore syms with empty names. */
1235 /* Ignore old-style symbols from cc -go */
1242 p
= strchr (p
, ':');
1245 /* If a nameless stab entry, all we need is the type, not the symbol.
1246 e.g. ":t10=*2" or a nameless enum like " :T16=ered:0,green:1,blue:2,;" */
1247 nameless
= (p
== string
|| ((string
[0] == ' ') && (string
[1] == ':')));
1249 current_symbol
= sym
= (struct symbol
*)
1250 obstack_alloc (&objfile
->symbol_obstack
, sizeof (struct symbol
));
1251 memset (sym
, 0, sizeof (struct symbol
));
1253 switch (type
& N_TYPE
)
1256 SYMBOL_SECTION (sym
) = SECT_OFF_TEXT (objfile
);
1259 SYMBOL_SECTION (sym
) = SECT_OFF_DATA (objfile
);
1262 SYMBOL_SECTION (sym
) = SECT_OFF_BSS (objfile
);
1266 if (processing_gcc_compilation
)
1268 /* GCC 2.x puts the line number in desc. SunOS apparently puts in the
1269 number of bytes occupied by a type or object, which we ignore. */
1270 SYMBOL_LINE (sym
) = desc
;
1274 SYMBOL_LINE (sym
) = 0; /* unknown */
1277 if (is_cplus_marker (string
[0]))
1279 /* Special GNU C++ names. */
1283 SYMBOL_NAME (sym
) = obsavestring ("this", strlen ("this"),
1284 &objfile
->symbol_obstack
);
1287 case 'v': /* $vtbl_ptr_type */
1288 /* Was: SYMBOL_NAME (sym) = "vptr"; */
1292 SYMBOL_NAME (sym
) = obsavestring ("eh_throw", strlen ("eh_throw"),
1293 &objfile
->symbol_obstack
);
1297 /* This was an anonymous type that was never fixed up. */
1300 #ifdef STATIC_TRANSFORM_NAME
1302 /* SunPRO (3.0 at least) static variable encoding. */
1307 complaint (&symfile_complaints
, "Unknown C++ symbol name `%s'",
1309 goto normal
; /* Do *something* with it */
1312 else if (string
[0] == '#')
1314 /* Special GNU C extension for referencing symbols. */
1318 /* If STRING defines a new reference id, then add it to the
1319 reference map. Else it must be referring to a previously
1320 defined symbol, so add it to the alias list of the previously
1323 refnum
= symbol_reference_defined (&s
);
1325 ref_add (refnum
, sym
, string
, SYMBOL_VALUE (sym
));
1326 else if (!resolve_symbol_reference (objfile
, sym
, string
))
1329 /* S..P contains the name of the symbol. We need to store
1330 the correct name into SYMBOL_NAME. */
1336 SYMBOL_NAME (sym
) = (char *)
1337 obstack_alloc (&objfile
->symbol_obstack
, nlen
);
1338 strncpy (SYMBOL_NAME (sym
), s
, nlen
);
1339 SYMBOL_NAME (sym
)[nlen
] = '\0';
1340 SYMBOL_INIT_DEMANGLED_NAME (sym
, &objfile
->symbol_obstack
);
1343 /* FIXME! Want SYMBOL_NAME (sym) = 0;
1344 Get error if leave name 0. So give it something. */
1347 SYMBOL_NAME (sym
) = (char *)
1348 obstack_alloc (&objfile
->symbol_obstack
, nlen
);
1349 strncpy (SYMBOL_NAME (sym
), string
, nlen
);
1350 SYMBOL_NAME (sym
)[nlen
] = '\0';
1351 SYMBOL_INIT_DEMANGLED_NAME (sym
, &objfile
->symbol_obstack
);
1354 /* Advance STRING beyond the reference id. */
1360 SYMBOL_LANGUAGE (sym
) = current_subfile
->language
;
1361 SYMBOL_NAME (sym
) = (char *)
1362 obstack_alloc (&objfile
->symbol_obstack
, ((p
- string
) + 1));
1363 /* Open-coded memcpy--saves function call time. */
1364 /* FIXME: Does it really? Try replacing with simple strcpy and
1365 try it on an executable with a large symbol table. */
1366 /* FIXME: considering that gcc can open code memcpy anyway, I
1367 doubt it. xoxorich. */
1369 register char *p1
= string
;
1370 register char *p2
= SYMBOL_NAME (sym
);
1378 /* If this symbol is from a C++ compilation, then attempt to cache the
1379 demangled form for future reference. This is a typical time versus
1380 space tradeoff, that was decided in favor of time because it sped up
1381 C++ symbol lookups by a factor of about 20. */
1383 SYMBOL_INIT_DEMANGLED_NAME (sym
, &objfile
->symbol_obstack
);
1387 /* Determine the type of name being defined. */
1389 /* Getting GDB to correctly skip the symbol on an undefined symbol
1390 descriptor and not ever dump core is a very dodgy proposition if
1391 we do things this way. I say the acorn RISC machine can just
1392 fix their compiler. */
1393 /* The Acorn RISC machine's compiler can put out locals that don't
1394 start with "234=" or "(3,4)=", so assume anything other than the
1395 deftypes we know how to handle is a local. */
1396 if (!strchr ("cfFGpPrStTvVXCR", *p
))
1398 if (isdigit (*p
) || *p
== '(' || *p
== '-')
1407 /* c is a special case, not followed by a type-number.
1408 SYMBOL:c=iVALUE for an integer constant symbol.
1409 SYMBOL:c=rVALUE for a floating constant symbol.
1410 SYMBOL:c=eTYPE,INTVALUE for an enum constant symbol.
1411 e.g. "b:c=e6,0" for "const b = blob1"
1412 (where type 6 is defined by "blobs:t6=eblob1:0,blob2:1,;"). */
1415 SYMBOL_CLASS (sym
) = LOC_CONST
;
1416 SYMBOL_TYPE (sym
) = error_type (&p
, objfile
);
1417 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1418 add_symbol_to_list (sym
, &file_symbols
);
1426 double d
= atof (p
);
1429 /* FIXME-if-picky-about-floating-accuracy: Should be using
1430 target arithmetic to get the value. real.c in GCC
1431 probably has the necessary code. */
1433 /* FIXME: lookup_fundamental_type is a hack. We should be
1434 creating a type especially for the type of float constants.
1435 Problem is, what type should it be?
1437 Also, what should the name of this type be? Should we
1438 be using 'S' constants (see stabs.texinfo) instead? */
1440 SYMBOL_TYPE (sym
) = lookup_fundamental_type (objfile
,
1443 obstack_alloc (&objfile
->symbol_obstack
,
1444 TYPE_LENGTH (SYMBOL_TYPE (sym
)));
1445 store_typed_floating (dbl_valu
, SYMBOL_TYPE (sym
), d
);
1446 SYMBOL_VALUE_BYTES (sym
) = dbl_valu
;
1447 SYMBOL_CLASS (sym
) = LOC_CONST_BYTES
;
1452 /* Defining integer constants this way is kind of silly,
1453 since 'e' constants allows the compiler to give not
1454 only the value, but the type as well. C has at least
1455 int, long, unsigned int, and long long as constant
1456 types; other languages probably should have at least
1457 unsigned as well as signed constants. */
1459 /* We just need one int constant type for all objfiles.
1460 It doesn't depend on languages or anything (arguably its
1461 name should be a language-specific name for a type of
1462 that size, but I'm inclined to say that if the compiler
1463 wants a nice name for the type, it can use 'e'). */
1464 static struct type
*int_const_type
;
1466 /* Yes, this is as long as a *host* int. That is because we
1468 if (int_const_type
== NULL
)
1470 init_type (TYPE_CODE_INT
,
1471 sizeof (int) * HOST_CHAR_BIT
/ TARGET_CHAR_BIT
, 0,
1473 (struct objfile
*) NULL
);
1474 SYMBOL_TYPE (sym
) = int_const_type
;
1475 SYMBOL_VALUE (sym
) = atoi (p
);
1476 SYMBOL_CLASS (sym
) = LOC_CONST
;
1480 /* SYMBOL:c=eTYPE,INTVALUE for a constant symbol whose value
1481 can be represented as integral.
1482 e.g. "b:c=e6,0" for "const b = blob1"
1483 (where type 6 is defined by "blobs:t6=eblob1:0,blob2:1,;"). */
1485 SYMBOL_CLASS (sym
) = LOC_CONST
;
1486 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1490 SYMBOL_TYPE (sym
) = error_type (&p
, objfile
);
1495 /* If the value is too big to fit in an int (perhaps because
1496 it is unsigned), or something like that, we silently get
1497 a bogus value. The type and everything else about it is
1498 correct. Ideally, we should be using whatever we have
1499 available for parsing unsigned and long long values,
1501 SYMBOL_VALUE (sym
) = atoi (p
);
1506 SYMBOL_CLASS (sym
) = LOC_CONST
;
1507 SYMBOL_TYPE (sym
) = error_type (&p
, objfile
);
1510 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1511 add_symbol_to_list (sym
, &file_symbols
);
1515 /* The name of a caught exception. */
1516 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1517 SYMBOL_CLASS (sym
) = LOC_LABEL
;
1518 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1519 SYMBOL_VALUE_ADDRESS (sym
) = valu
;
1520 add_symbol_to_list (sym
, &local_symbols
);
1524 /* A static function definition. */
1525 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1526 SYMBOL_CLASS (sym
) = LOC_BLOCK
;
1527 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1528 add_symbol_to_list (sym
, &file_symbols
);
1529 /* fall into process_function_types. */
1531 process_function_types
:
1532 /* Function result types are described as the result type in stabs.
1533 We need to convert this to the function-returning-type-X type
1534 in GDB. E.g. "int" is converted to "function returning int". */
1535 if (TYPE_CODE (SYMBOL_TYPE (sym
)) != TYPE_CODE_FUNC
)
1536 SYMBOL_TYPE (sym
) = lookup_function_type (SYMBOL_TYPE (sym
));
1538 /* All functions in C++ have prototypes. Stabs does not offer an
1539 explicit way to identify prototyped or unprototyped functions,
1540 but both GCC and Sun CC emit stabs for the "call-as" type rather
1541 than the "declared-as" type for unprototyped functions, so
1542 we treat all functions as if they were prototyped. This is used
1543 primarily for promotion when calling the function from GDB. */
1544 TYPE_FLAGS (SYMBOL_TYPE (sym
)) |= TYPE_FLAG_PROTOTYPED
;
1546 /* fall into process_prototype_types */
1548 process_prototype_types
:
1549 /* Sun acc puts declared types of arguments here. */
1552 struct type
*ftype
= SYMBOL_TYPE (sym
);
1557 /* Obtain a worst case guess for the number of arguments
1558 by counting the semicolons. */
1565 /* Allocate parameter information fields and fill them in. */
1566 TYPE_FIELDS (ftype
) = (struct field
*)
1567 TYPE_ALLOC (ftype
, nsemi
* sizeof (struct field
));
1572 /* A type number of zero indicates the start of varargs.
1573 FIXME: GDB currently ignores vararg functions. */
1574 if (p
[0] == '0' && p
[1] == '\0')
1576 ptype
= read_type (&p
, objfile
);
1578 /* The Sun compilers mark integer arguments, which should
1579 be promoted to the width of the calling conventions, with
1580 a type which references itself. This type is turned into
1581 a TYPE_CODE_VOID type by read_type, and we have to turn
1582 it back into builtin_type_int here.
1583 FIXME: Do we need a new builtin_type_promoted_int_arg ? */
1584 if (TYPE_CODE (ptype
) == TYPE_CODE_VOID
)
1585 ptype
= builtin_type_int
;
1586 TYPE_FIELD_TYPE (ftype
, nparams
) = ptype
;
1587 TYPE_FIELD_ARTIFICIAL (ftype
, nparams
++) = 0;
1589 TYPE_NFIELDS (ftype
) = nparams
;
1590 TYPE_FLAGS (ftype
) |= TYPE_FLAG_PROTOTYPED
;
1595 /* A global function definition. */
1596 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1597 SYMBOL_CLASS (sym
) = LOC_BLOCK
;
1598 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1599 add_symbol_to_list (sym
, &global_symbols
);
1600 goto process_function_types
;
1603 /* For a class G (global) symbol, it appears that the
1604 value is not correct. It is necessary to search for the
1605 corresponding linker definition to find the value.
1606 These definitions appear at the end of the namelist. */
1607 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1608 SYMBOL_CLASS (sym
) = LOC_STATIC
;
1609 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1610 /* Don't add symbol references to global_sym_chain.
1611 Symbol references don't have valid names and wont't match up with
1612 minimal symbols when the global_sym_chain is relocated.
1613 We'll fixup symbol references when we fixup the defining symbol. */
1614 if (SYMBOL_NAME (sym
) && SYMBOL_NAME (sym
)[0] != '#')
1616 i
= hashname (SYMBOL_NAME (sym
));
1617 SYMBOL_VALUE_CHAIN (sym
) = global_sym_chain
[i
];
1618 global_sym_chain
[i
] = sym
;
1620 add_symbol_to_list (sym
, &global_symbols
);
1623 /* This case is faked by a conditional above,
1624 when there is no code letter in the dbx data.
1625 Dbx data never actually contains 'l'. */
1628 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1629 SYMBOL_CLASS (sym
) = LOC_LOCAL
;
1630 SYMBOL_VALUE (sym
) = valu
;
1631 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1632 add_symbol_to_list (sym
, &local_symbols
);
1637 /* pF is a two-letter code that means a function parameter in Fortran.
1638 The type-number specifies the type of the return value.
1639 Translate it into a pointer-to-function type. */
1643 = lookup_pointer_type
1644 (lookup_function_type (read_type (&p
, objfile
)));
1647 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1649 SYMBOL_CLASS (sym
) = LOC_ARG
;
1650 SYMBOL_VALUE (sym
) = valu
;
1651 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1652 add_symbol_to_list (sym
, &local_symbols
);
1654 if (TARGET_BYTE_ORDER
!= BFD_ENDIAN_BIG
)
1656 /* On little-endian machines, this crud is never necessary,
1657 and, if the extra bytes contain garbage, is harmful. */
1661 /* If it's gcc-compiled, if it says `short', believe it. */
1662 if (processing_gcc_compilation
|| BELIEVE_PCC_PROMOTION
)
1665 if (!BELIEVE_PCC_PROMOTION
)
1667 /* This is the signed type which arguments get promoted to. */
1668 static struct type
*pcc_promotion_type
;
1669 /* This is the unsigned type which arguments get promoted to. */
1670 static struct type
*pcc_unsigned_promotion_type
;
1672 /* Call it "int" because this is mainly C lossage. */
1673 if (pcc_promotion_type
== NULL
)
1674 pcc_promotion_type
=
1675 init_type (TYPE_CODE_INT
, TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
1678 if (pcc_unsigned_promotion_type
== NULL
)
1679 pcc_unsigned_promotion_type
=
1680 init_type (TYPE_CODE_INT
, TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
1681 TYPE_FLAG_UNSIGNED
, "unsigned int", NULL
);
1683 if (BELIEVE_PCC_PROMOTION_TYPE
)
1685 /* This is defined on machines (e.g. sparc) where we
1686 should believe the type of a PCC 'short' argument,
1687 but shouldn't believe the address (the address is the
1688 address of the corresponding int).
1690 My guess is that this correction, as opposed to
1691 changing the parameter to an 'int' (as done below,
1692 for PCC on most machines), is the right thing to do
1693 on all machines, but I don't want to risk breaking
1694 something that already works. On most PCC machines,
1695 the sparc problem doesn't come up because the calling
1696 function has to zero the top bytes (not knowing
1697 whether the called function wants an int or a short),
1698 so there is little practical difference between an
1699 int and a short (except perhaps what happens when the
1700 GDB user types "print short_arg = 0x10000;").
1702 Hacked for SunOS 4.1 by gnu@cygnus.com. In 4.1, the
1703 compiler actually produces the correct address (we
1704 don't need to fix it up). I made this code adapt so
1705 that it will offset the symbol if it was pointing at
1706 an int-aligned location and not otherwise. This way
1707 you can use the same gdb for 4.0.x and 4.1 systems.
1709 If the parameter is shorter than an int, and is
1710 integral (e.g. char, short, or unsigned equivalent),
1711 and is claimed to be passed on an integer boundary,
1712 don't believe it! Offset the parameter's address to
1713 the tail-end of that integer. */
1715 if (TYPE_LENGTH (SYMBOL_TYPE (sym
)) < TYPE_LENGTH (pcc_promotion_type
)
1716 && TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_INT
1717 && 0 == SYMBOL_VALUE (sym
) % TYPE_LENGTH (pcc_promotion_type
))
1719 SYMBOL_VALUE (sym
) += TYPE_LENGTH (pcc_promotion_type
)
1720 - TYPE_LENGTH (SYMBOL_TYPE (sym
));
1726 /* If PCC says a parameter is a short or a char,
1727 it is really an int. */
1728 if (TYPE_LENGTH (SYMBOL_TYPE (sym
)) < TYPE_LENGTH (pcc_promotion_type
)
1729 && TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_INT
)
1732 TYPE_UNSIGNED (SYMBOL_TYPE (sym
))
1733 ? pcc_unsigned_promotion_type
1734 : pcc_promotion_type
;
1741 /* acc seems to use P to declare the prototypes of functions that
1742 are referenced by this file. gdb is not prepared to deal
1743 with this extra information. FIXME, it ought to. */
1746 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1747 goto process_prototype_types
;
1752 /* Parameter which is in a register. */
1753 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1754 SYMBOL_CLASS (sym
) = LOC_REGPARM
;
1755 SYMBOL_VALUE (sym
) = STAB_REG_TO_REGNUM (valu
);
1756 if (SYMBOL_VALUE (sym
) >= NUM_REGS
+ NUM_PSEUDO_REGS
)
1758 reg_value_complaint (SYMBOL_VALUE (sym
),
1759 NUM_REGS
+ NUM_PSEUDO_REGS
,
1760 SYMBOL_SOURCE_NAME (sym
));
1761 SYMBOL_VALUE (sym
) = SP_REGNUM
; /* Known safe, though useless */
1763 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1764 add_symbol_to_list (sym
, &local_symbols
);
1768 /* Register variable (either global or local). */
1769 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1770 SYMBOL_CLASS (sym
) = LOC_REGISTER
;
1771 SYMBOL_VALUE (sym
) = STAB_REG_TO_REGNUM (valu
);
1772 if (SYMBOL_VALUE (sym
) >= NUM_REGS
+ NUM_PSEUDO_REGS
)
1774 reg_value_complaint (SYMBOL_VALUE (sym
),
1775 NUM_REGS
+ NUM_PSEUDO_REGS
,
1776 SYMBOL_SOURCE_NAME (sym
));
1777 SYMBOL_VALUE (sym
) = SP_REGNUM
; /* Known safe, though useless */
1779 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1780 if (within_function
)
1782 /* Sun cc uses a pair of symbols, one 'p' and one 'r' with the same
1783 name to represent an argument passed in a register.
1784 GCC uses 'P' for the same case. So if we find such a symbol pair
1785 we combine it into one 'P' symbol. For Sun cc we need to do this
1786 regardless of REG_STRUCT_HAS_ADDR, because the compiler puts out
1787 the 'p' symbol even if it never saves the argument onto the stack.
1789 On most machines, we want to preserve both symbols, so that
1790 we can still get information about what is going on with the
1791 stack (VAX for computing args_printed, using stack slots instead
1792 of saved registers in backtraces, etc.).
1794 Note that this code illegally combines
1795 main(argc) struct foo argc; { register struct foo argc; }
1796 but this case is considered pathological and causes a warning
1797 from a decent compiler. */
1800 && local_symbols
->nsyms
> 0
1801 #ifndef USE_REGISTER_NOT_ARG
1802 && REG_STRUCT_HAS_ADDR_P ()
1803 && REG_STRUCT_HAS_ADDR (processing_gcc_compilation
,
1805 && (TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_STRUCT
1806 || TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_UNION
1807 || TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_SET
1808 || TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_BITSTRING
)
1812 struct symbol
*prev_sym
;
1813 prev_sym
= local_symbols
->symbol
[local_symbols
->nsyms
- 1];
1814 if ((SYMBOL_CLASS (prev_sym
) == LOC_REF_ARG
1815 || SYMBOL_CLASS (prev_sym
) == LOC_ARG
)
1816 && STREQ (SYMBOL_NAME (prev_sym
), SYMBOL_NAME (sym
)))
1818 SYMBOL_CLASS (prev_sym
) = LOC_REGPARM
;
1819 /* Use the type from the LOC_REGISTER; that is the type
1820 that is actually in that register. */
1821 SYMBOL_TYPE (prev_sym
) = SYMBOL_TYPE (sym
);
1822 SYMBOL_VALUE (prev_sym
) = SYMBOL_VALUE (sym
);
1827 add_symbol_to_list (sym
, &local_symbols
);
1830 add_symbol_to_list (sym
, &file_symbols
);
1834 /* Static symbol at top level of file */
1835 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1836 SYMBOL_CLASS (sym
) = LOC_STATIC
;
1837 SYMBOL_VALUE_ADDRESS (sym
) = valu
;
1838 #ifdef STATIC_TRANSFORM_NAME
1839 if (IS_STATIC_TRANSFORM_NAME (SYMBOL_NAME (sym
)))
1841 struct minimal_symbol
*msym
;
1842 msym
= lookup_minimal_symbol (SYMBOL_NAME (sym
), NULL
, objfile
);
1845 SYMBOL_NAME (sym
) = STATIC_TRANSFORM_NAME (SYMBOL_NAME (sym
));
1846 SYMBOL_VALUE_ADDRESS (sym
) = SYMBOL_VALUE_ADDRESS (msym
);
1850 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1851 add_symbol_to_list (sym
, &file_symbols
);
1856 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1858 /* For a nameless type, we don't want a create a symbol, thus we
1859 did not use `sym'. Return without further processing. */
1863 SYMBOL_CLASS (sym
) = LOC_TYPEDEF
;
1864 SYMBOL_VALUE (sym
) = valu
;
1865 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1866 /* C++ vagaries: we may have a type which is derived from
1867 a base type which did not have its name defined when the
1868 derived class was output. We fill in the derived class's
1869 base part member's name here in that case. */
1870 if (TYPE_NAME (SYMBOL_TYPE (sym
)) != NULL
)
1871 if ((TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_STRUCT
1872 || TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_UNION
)
1873 && TYPE_N_BASECLASSES (SYMBOL_TYPE (sym
)))
1876 for (j
= TYPE_N_BASECLASSES (SYMBOL_TYPE (sym
)) - 1; j
>= 0; j
--)
1877 if (TYPE_BASECLASS_NAME (SYMBOL_TYPE (sym
), j
) == 0)
1878 TYPE_BASECLASS_NAME (SYMBOL_TYPE (sym
), j
) =
1879 type_name_no_tag (TYPE_BASECLASS (SYMBOL_TYPE (sym
), j
));
1882 if (TYPE_NAME (SYMBOL_TYPE (sym
)) == NULL
)
1884 /* gcc-2.6 or later (when using -fvtable-thunks)
1885 emits a unique named type for a vtable entry.
1886 Some gdb code depends on that specific name. */
1887 extern const char vtbl_ptr_name
[];
1889 if ((TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_PTR
1890 && strcmp (SYMBOL_NAME (sym
), vtbl_ptr_name
))
1891 || TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_FUNC
)
1893 /* If we are giving a name to a type such as "pointer to
1894 foo" or "function returning foo", we better not set
1895 the TYPE_NAME. If the program contains "typedef char
1896 *caddr_t;", we don't want all variables of type char
1897 * to print as caddr_t. This is not just a
1898 consequence of GDB's type management; PCC and GCC (at
1899 least through version 2.4) both output variables of
1900 either type char * or caddr_t with the type number
1901 defined in the 't' symbol for caddr_t. If a future
1902 compiler cleans this up it GDB is not ready for it
1903 yet, but if it becomes ready we somehow need to
1904 disable this check (without breaking the PCC/GCC2.4
1909 Fortunately, this check seems not to be necessary
1910 for anything except pointers or functions. */
1911 /* ezannoni: 2000-10-26. This seems to apply for
1912 versions of gcc older than 2.8. This was the original
1913 problem: with the following code gdb would tell that
1914 the type for name1 is caddr_t, and func is char()
1915 typedef char *caddr_t;
1927 /* Pascal accepts names for pointer types. */
1928 if (current_subfile
->language
== language_pascal
)
1930 TYPE_NAME (SYMBOL_TYPE (sym
)) = SYMBOL_NAME (sym
);
1934 TYPE_NAME (SYMBOL_TYPE (sym
)) = SYMBOL_NAME (sym
);
1937 add_symbol_to_list (sym
, &file_symbols
);
1941 /* Struct, union, or enum tag. For GNU C++, this can be be followed
1942 by 't' which means we are typedef'ing it as well. */
1943 synonym
= *p
== 't';
1947 #if 0 /* OBSOLETE CFront */
1948 // OBSOLETE /* The semantics of C++ state that "struct foo { ... }" also defines
1949 // OBSOLETE a typedef for "foo". Unfortunately, cfront never makes the typedef
1950 // OBSOLETE when translating C++ into C. We make the typedef here so that
1951 // OBSOLETE "ptype foo" works as expected for cfront translated code. */
1952 // OBSOLETE else if ((current_subfile->language == language_cplus)
1953 // OBSOLETE || (current_subfile->language == language_objc))
1954 // OBSOLETE synonym = 1;
1955 #endif /* OBSOLETE CFront */
1957 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1959 /* For a nameless type, we don't want a create a symbol, thus we
1960 did not use `sym'. Return without further processing. */
1964 SYMBOL_CLASS (sym
) = LOC_TYPEDEF
;
1965 SYMBOL_VALUE (sym
) = valu
;
1966 SYMBOL_NAMESPACE (sym
) = STRUCT_NAMESPACE
;
1967 if (TYPE_TAG_NAME (SYMBOL_TYPE (sym
)) == 0)
1968 TYPE_TAG_NAME (SYMBOL_TYPE (sym
))
1969 = obconcat (&objfile
->type_obstack
, "", "", SYMBOL_NAME (sym
));
1970 add_symbol_to_list (sym
, &file_symbols
);
1974 /* Clone the sym and then modify it. */
1975 register struct symbol
*typedef_sym
= (struct symbol
*)
1976 obstack_alloc (&objfile
->symbol_obstack
, sizeof (struct symbol
));
1977 *typedef_sym
= *sym
;
1978 SYMBOL_CLASS (typedef_sym
) = LOC_TYPEDEF
;
1979 SYMBOL_VALUE (typedef_sym
) = valu
;
1980 SYMBOL_NAMESPACE (typedef_sym
) = VAR_NAMESPACE
;
1981 if (TYPE_NAME (SYMBOL_TYPE (sym
)) == 0)
1982 TYPE_NAME (SYMBOL_TYPE (sym
))
1983 = obconcat (&objfile
->type_obstack
, "", "", SYMBOL_NAME (sym
));
1984 add_symbol_to_list (typedef_sym
, &file_symbols
);
1989 /* Static symbol of local scope */
1990 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1991 SYMBOL_CLASS (sym
) = LOC_STATIC
;
1992 SYMBOL_VALUE_ADDRESS (sym
) = valu
;
1993 #ifdef STATIC_TRANSFORM_NAME
1994 if (IS_STATIC_TRANSFORM_NAME (SYMBOL_NAME (sym
)))
1996 struct minimal_symbol
*msym
;
1997 msym
= lookup_minimal_symbol (SYMBOL_NAME (sym
), NULL
, objfile
);
2000 SYMBOL_NAME (sym
) = STATIC_TRANSFORM_NAME (SYMBOL_NAME (sym
));
2001 SYMBOL_VALUE_ADDRESS (sym
) = SYMBOL_VALUE_ADDRESS (msym
);
2005 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
2006 add_symbol_to_list (sym
, &local_symbols
);
2010 /* Reference parameter */
2011 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
2012 SYMBOL_CLASS (sym
) = LOC_REF_ARG
;
2013 SYMBOL_VALUE (sym
) = valu
;
2014 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
2015 add_symbol_to_list (sym
, &local_symbols
);
2019 /* Reference parameter which is in a register. */
2020 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
2021 SYMBOL_CLASS (sym
) = LOC_REGPARM_ADDR
;
2022 SYMBOL_VALUE (sym
) = STAB_REG_TO_REGNUM (valu
);
2023 if (SYMBOL_VALUE (sym
) >= NUM_REGS
+ NUM_PSEUDO_REGS
)
2025 reg_value_complaint (SYMBOL_VALUE (sym
),
2026 NUM_REGS
+ NUM_PSEUDO_REGS
,
2027 SYMBOL_SOURCE_NAME (sym
));
2028 SYMBOL_VALUE (sym
) = SP_REGNUM
; /* Known safe, though useless */
2030 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
2031 add_symbol_to_list (sym
, &local_symbols
);
2035 /* This is used by Sun FORTRAN for "function result value".
2036 Sun claims ("dbx and dbxtool interfaces", 2nd ed)
2037 that Pascal uses it too, but when I tried it Pascal used
2038 "x:3" (local symbol) instead. */
2039 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
2040 SYMBOL_CLASS (sym
) = LOC_LOCAL
;
2041 SYMBOL_VALUE (sym
) = valu
;
2042 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
2043 add_symbol_to_list (sym
, &local_symbols
);
2045 #if 0 /* OBSOLETE CFront */
2046 // OBSOLETE /* New code added to support cfront stabs strings.
2047 // OBSOLETE Note: case 'P' already handled above */
2048 // OBSOLETE case 'Z':
2049 // OBSOLETE /* Cfront type continuation coming up!
2050 // OBSOLETE Find the original definition and add to it.
2051 // OBSOLETE We'll have to do this for the typedef too,
2052 // OBSOLETE since we cloned the symbol to define a type in read_type.
2053 // OBSOLETE Stabs info examples:
2054 // OBSOLETE __1C :Ztl
2055 // OBSOLETE foo__1CFv :ZtF (first def foo__1CFv:F(0,3);(0,24))
2056 // OBSOLETE C:ZsC;;__ct__1CFv func1__1CFv func2__1CFv ... ;;;
2057 // OBSOLETE where C is the name of the class.
2058 // OBSOLETE Unfortunately, we can't lookup the original symbol yet 'cuz
2059 // OBSOLETE we haven't finished reading all the symbols.
2060 // OBSOLETE Instead, we save it for processing later */
2061 // OBSOLETE process_later (sym, p, resolve_cfront_continuation);
2062 // OBSOLETE SYMBOL_TYPE (sym) = error_type (&p, objfile); /* FIXME! change later */
2063 // OBSOLETE SYMBOL_CLASS (sym) = LOC_CONST;
2064 // OBSOLETE SYMBOL_VALUE (sym) = 0;
2065 // OBSOLETE SYMBOL_NAMESPACE (sym) = VAR_NAMESPACE;
2066 // OBSOLETE /* Don't add to list - we'll delete it later when
2067 // OBSOLETE we add the continuation to the real sym */
2068 // OBSOLETE return sym;
2069 // OBSOLETE /* End of new code added to support cfront stabs strings */
2070 #endif /* OBSOLETE CFront */
2073 SYMBOL_TYPE (sym
) = error_type (&p
, objfile
);
2074 SYMBOL_CLASS (sym
) = LOC_CONST
;
2075 SYMBOL_VALUE (sym
) = 0;
2076 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
2077 add_symbol_to_list (sym
, &file_symbols
);
2081 /* When passing structures to a function, some systems sometimes pass
2082 the address in a register, not the structure itself. */
2084 if (REG_STRUCT_HAS_ADDR_P ()
2085 && REG_STRUCT_HAS_ADDR (processing_gcc_compilation
, SYMBOL_TYPE (sym
))
2086 && (SYMBOL_CLASS (sym
) == LOC_REGPARM
|| SYMBOL_CLASS (sym
) == LOC_ARG
))
2088 struct type
*symbol_type
= check_typedef (SYMBOL_TYPE (sym
));
2090 if ((TYPE_CODE (symbol_type
) == TYPE_CODE_STRUCT
)
2091 || (TYPE_CODE (symbol_type
) == TYPE_CODE_UNION
)
2092 || (TYPE_CODE (symbol_type
) == TYPE_CODE_BITSTRING
)
2093 || (TYPE_CODE (symbol_type
) == TYPE_CODE_SET
))
2095 /* If REG_STRUCT_HAS_ADDR yields non-zero we have to convert
2096 LOC_REGPARM to LOC_REGPARM_ADDR for structures and unions. */
2097 if (SYMBOL_CLASS (sym
) == LOC_REGPARM
)
2098 SYMBOL_CLASS (sym
) = LOC_REGPARM_ADDR
;
2099 /* Likewise for converting LOC_ARG to LOC_REF_ARG (for the 7th
2100 and subsequent arguments on the sparc, for example). */
2101 else if (SYMBOL_CLASS (sym
) == LOC_ARG
)
2102 SYMBOL_CLASS (sym
) = LOC_REF_ARG
;
2106 /* Is there more to parse? For example LRS/alias information? */
2107 while (*p
&& *p
== ';')
2110 if (*p
&& p
[0] == 'l' && p
[1] == '(')
2112 /* GNU extensions for live range splitting may be appended to
2113 the end of the stab string. eg. "l(#1,#2);l(#3,#5)" */
2115 /* Resolve the live range and add it to SYM's live range list. */
2116 if (!resolve_live_range (objfile
, sym
, p
))
2119 /* Find end of live range info. */
2120 p
= strchr (p
, ')');
2121 if (!*p
|| *p
!= ')')
2123 lrs_general_complaint ("live range format not recognized");
2132 /* Add the live range found in P to the symbol SYM in objfile OBJFILE. Returns
2133 non-zero on success, zero otherwise. */
2136 resolve_live_range (struct objfile
*objfile
, struct symbol
*sym
, char *p
)
2139 CORE_ADDR start
, end
;
2141 /* Sanity check the beginning of the stabs string. */
2142 if (!*p
|| *p
!= 'l')
2144 lrs_general_complaint ("live range string 1");
2149 if (!*p
|| *p
!= '(')
2151 lrs_general_complaint ("live range string 2");
2156 /* Get starting value of range and advance P past the reference id.
2158 ?!? In theory, the process_reference should never fail, but we should
2159 catch that case just in case the compiler scrogged the stabs. */
2160 refnum
= process_reference (&p
);
2161 start
= ref_search_value (refnum
);
2164 lrs_general_complaint ("Live range symbol not found 1");
2168 if (!*p
|| *p
!= ',')
2170 lrs_general_complaint ("live range string 3");
2175 /* Get ending value of range and advance P past the reference id.
2177 ?!? In theory, the process_reference should never fail, but we should
2178 catch that case just in case the compiler scrogged the stabs. */
2179 refnum
= process_reference (&p
);
2180 end
= ref_search_value (refnum
);
2183 lrs_general_complaint ("Live range symbol not found 2");
2187 if (!*p
|| *p
!= ')')
2189 lrs_general_complaint ("live range string 4");
2193 /* Now that we know the bounds of the range, add it to the
2195 add_live_range (objfile
, sym
, start
, end
);
2200 /* Add a new live range defined by START and END to the symbol SYM
2201 in objfile OBJFILE. */
2204 add_live_range (struct objfile
*objfile
, struct symbol
*sym
, CORE_ADDR start
,
2207 struct range_list
*r
, *rs
;
2211 lrs_general_complaint ("end of live range follows start");
2215 /* Alloc new live range structure. */
2216 r
= (struct range_list
*)
2217 obstack_alloc (&objfile
->type_obstack
,
2218 sizeof (struct range_list
));
2223 /* Append this range to the symbol's range list. */
2224 if (!SYMBOL_RANGES (sym
))
2225 SYMBOL_RANGES (sym
) = r
;
2228 /* Get the last range for the symbol. */
2229 for (rs
= SYMBOL_RANGES (sym
); rs
->next
; rs
= rs
->next
)
2236 /* Skip rest of this symbol and return an error type.
2238 General notes on error recovery: error_type always skips to the
2239 end of the symbol (modulo cretinous dbx symbol name continuation).
2240 Thus code like this:
2242 if (*(*pp)++ != ';')
2243 return error_type (pp, objfile);
2245 is wrong because if *pp starts out pointing at '\0' (typically as the
2246 result of an earlier error), it will be incremented to point to the
2247 start of the next symbol, which might produce strange results, at least
2248 if you run off the end of the string table. Instead use
2251 return error_type (pp, objfile);
2257 foo = error_type (pp, objfile);
2261 And in case it isn't obvious, the point of all this hair is so the compiler
2262 can define new types and new syntaxes, and old versions of the
2263 debugger will be able to read the new symbol tables. */
2265 static struct type
*
2266 error_type (char **pp
, struct objfile
*objfile
)
2268 complaint (&symfile_complaints
, "couldn't parse type; debugger out of date?");
2271 /* Skip to end of symbol. */
2272 while (**pp
!= '\0')
2277 /* Check for and handle cretinous dbx symbol name continuation! */
2278 if ((*pp
)[-1] == '\\' || (*pp
)[-1] == '?')
2280 *pp
= next_symbol_text (objfile
);
2287 return (builtin_type_error
);
2291 /* Read type information or a type definition; return the type. Even
2292 though this routine accepts either type information or a type
2293 definition, the distinction is relevant--some parts of stabsread.c
2294 assume that type information starts with a digit, '-', or '(' in
2295 deciding whether to call read_type. */
2298 read_type (register char **pp
, struct objfile
*objfile
)
2300 register struct type
*type
= 0;
2303 char type_descriptor
;
2305 /* Size in bits of type if specified by a type attribute, or -1 if
2306 there is no size attribute. */
2309 /* Used to distinguish string and bitstring from char-array and set. */
2312 /* Used to distinguish vector from array. */
2315 /* Read type number if present. The type number may be omitted.
2316 for instance in a two-dimensional array declared with type
2317 "ar1;1;10;ar1;1;10;4". */
2318 if ((**pp
>= '0' && **pp
<= '9')
2322 if (read_type_number (pp
, typenums
) != 0)
2323 return error_type (pp
, objfile
);
2325 /* Type is not being defined here. Either it already exists,
2326 or this is a forward reference to it. dbx_alloc_type handles
2329 return dbx_alloc_type (typenums
, objfile
);
2331 /* Type is being defined here. */
2333 Also skip the type descriptor - we get it below with (*pp)[-1]. */
2338 /* 'typenums=' not present, type is anonymous. Read and return
2339 the definition, but don't put it in the type vector. */
2340 typenums
[0] = typenums
[1] = -1;
2345 type_descriptor
= (*pp
)[-1];
2346 switch (type_descriptor
)
2350 enum type_code code
;
2352 /* Used to index through file_symbols. */
2353 struct pending
*ppt
;
2356 /* Name including "struct", etc. */
2360 char *from
, *to
, *p
, *q1
, *q2
;
2362 /* Set the type code according to the following letter. */
2366 code
= TYPE_CODE_STRUCT
;
2369 code
= TYPE_CODE_UNION
;
2372 code
= TYPE_CODE_ENUM
;
2376 /* Complain and keep going, so compilers can invent new
2377 cross-reference types. */
2378 complaint (&symfile_complaints
,
2379 "Unrecognized cross-reference type `%c'", (*pp
)[0]);
2380 code
= TYPE_CODE_STRUCT
;
2385 q1
= strchr (*pp
, '<');
2386 p
= strchr (*pp
, ':');
2388 return error_type (pp
, objfile
);
2389 if (q1
&& p
> q1
&& p
[1] == ':')
2391 int nesting_level
= 0;
2392 for (q2
= q1
; *q2
; q2
++)
2396 else if (*q2
== '>')
2398 else if (*q2
== ':' && nesting_level
== 0)
2403 return error_type (pp
, objfile
);
2406 (char *) obstack_alloc (&objfile
->type_obstack
, p
- *pp
+ 1);
2408 /* Copy the name. */
2414 /* Set the pointer ahead of the name which we just read, and
2419 /* Now check to see whether the type has already been
2420 declared. This was written for arrays of cross-referenced
2421 types before we had TYPE_CODE_TARGET_STUBBED, so I'm pretty
2422 sure it is not necessary anymore. But it might be a good
2423 idea, to save a little memory. */
2425 for (ppt
= file_symbols
; ppt
; ppt
= ppt
->next
)
2426 for (i
= 0; i
< ppt
->nsyms
; i
++)
2428 struct symbol
*sym
= ppt
->symbol
[i
];
2430 if (SYMBOL_CLASS (sym
) == LOC_TYPEDEF
2431 && SYMBOL_NAMESPACE (sym
) == STRUCT_NAMESPACE
2432 && (TYPE_CODE (SYMBOL_TYPE (sym
)) == code
)
2433 && STREQ (SYMBOL_NAME (sym
), type_name
))
2435 obstack_free (&objfile
->type_obstack
, type_name
);
2436 type
= SYMBOL_TYPE (sym
);
2441 /* Didn't find the type to which this refers, so we must
2442 be dealing with a forward reference. Allocate a type
2443 structure for it, and keep track of it so we can
2444 fill in the rest of the fields when we get the full
2446 type
= dbx_alloc_type (typenums
, objfile
);
2447 TYPE_CODE (type
) = code
;
2448 TYPE_TAG_NAME (type
) = type_name
;
2449 INIT_CPLUS_SPECIFIC (type
);
2450 TYPE_FLAGS (type
) |= TYPE_FLAG_STUB
;
2452 add_undefined_type (type
);
2456 case '-': /* RS/6000 built-in type */
2470 /* We deal with something like t(1,2)=(3,4)=... which
2471 the Lucid compiler and recent gcc versions (post 2.7.3) use. */
2473 /* Allocate and enter the typedef type first.
2474 This handles recursive types. */
2475 type
= dbx_alloc_type (typenums
, objfile
);
2476 TYPE_CODE (type
) = TYPE_CODE_TYPEDEF
;
2478 struct type
*xtype
= read_type (pp
, objfile
);
2481 /* It's being defined as itself. That means it is "void". */
2482 TYPE_CODE (type
) = TYPE_CODE_VOID
;
2483 TYPE_LENGTH (type
) = 1;
2485 else if (type_size
>= 0 || is_string
)
2487 /* This is the absolute wrong way to construct types. Every
2488 other debug format has found a way around this problem and
2489 the related problems with unnecessarily stubbed types;
2490 someone motivated should attempt to clean up the issue
2491 here as well. Once a type pointed to has been created it
2492 should not be modified.
2494 Well, it's not *absolutely* wrong. Constructing recursive
2495 types (trees, linked lists) necessarily entails modifying
2496 types after creating them. Constructing any loop structure
2497 entails side effects. The Dwarf 2 reader does handle this
2498 more gracefully (it never constructs more than once
2499 instance of a type object, so it doesn't have to copy type
2500 objects wholesale), but it still mutates type objects after
2501 other folks have references to them.
2503 Keep in mind that this circularity/mutation issue shows up
2504 at the source language level, too: C's "incomplete types",
2505 for example. So the proper cleanup, I think, would be to
2506 limit GDB's type smashing to match exactly those required
2507 by the source language. So GDB could have a
2508 "complete_this_type" function, but never create unnecessary
2509 copies of a type otherwise. */
2510 replace_type (type
, xtype
);
2511 TYPE_NAME (type
) = NULL
;
2512 TYPE_TAG_NAME (type
) = NULL
;
2516 TYPE_FLAGS (type
) |= TYPE_FLAG_TARGET_STUB
;
2517 TYPE_TARGET_TYPE (type
) = xtype
;
2522 /* In the following types, we must be sure to overwrite any existing
2523 type that the typenums refer to, rather than allocating a new one
2524 and making the typenums point to the new one. This is because there
2525 may already be pointers to the existing type (if it had been
2526 forward-referenced), and we must change it to a pointer, function,
2527 reference, or whatever, *in-place*. */
2529 case '*': /* Pointer to another type */
2530 type1
= read_type (pp
, objfile
);
2531 type
= make_pointer_type (type1
, dbx_lookup_type (typenums
));
2534 case '&': /* Reference to another type */
2535 type1
= read_type (pp
, objfile
);
2536 type
= make_reference_type (type1
, dbx_lookup_type (typenums
));
2539 case 'f': /* Function returning another type */
2540 type1
= read_type (pp
, objfile
);
2541 type
= make_function_type (type1
, dbx_lookup_type (typenums
));
2544 case 'g': /* Prototyped function. (Sun) */
2546 /* Unresolved questions:
2548 - According to Sun's ``STABS Interface Manual'', for 'f'
2549 and 'F' symbol descriptors, a `0' in the argument type list
2550 indicates a varargs function. But it doesn't say how 'g'
2551 type descriptors represent that info. Someone with access
2552 to Sun's toolchain should try it out.
2554 - According to the comment in define_symbol (search for
2555 `process_prototype_types:'), Sun emits integer arguments as
2556 types which ref themselves --- like `void' types. Do we
2557 have to deal with that here, too? Again, someone with
2558 access to Sun's toolchain should try it out and let us
2561 const char *type_start
= (*pp
) - 1;
2562 struct type
*return_type
= read_type (pp
, objfile
);
2563 struct type
*func_type
2564 = make_function_type (return_type
, dbx_lookup_type (typenums
));
2567 struct type_list
*next
;
2571 while (**pp
&& **pp
!= '#')
2573 struct type
*arg_type
= read_type (pp
, objfile
);
2574 struct type_list
*new = alloca (sizeof (*new));
2575 new->type
= arg_type
;
2576 new->next
= arg_types
;
2584 complaint (&symfile_complaints
,
2585 "Prototyped function type didn't end arguments with `#':\n%s",
2589 /* If there is just one argument whose type is `void', then
2590 that's just an empty argument list. */
2592 && ! arg_types
->next
2593 && TYPE_CODE (arg_types
->type
) == TYPE_CODE_VOID
)
2596 TYPE_FIELDS (func_type
)
2597 = (struct field
*) TYPE_ALLOC (func_type
,
2598 num_args
* sizeof (struct field
));
2599 memset (TYPE_FIELDS (func_type
), 0, num_args
* sizeof (struct field
));
2602 struct type_list
*t
;
2604 /* We stuck each argument type onto the front of the list
2605 when we read it, so the list is reversed. Build the
2606 fields array right-to-left. */
2607 for (t
= arg_types
, i
= num_args
- 1; t
; t
= t
->next
, i
--)
2608 TYPE_FIELD_TYPE (func_type
, i
) = t
->type
;
2610 TYPE_NFIELDS (func_type
) = num_args
;
2611 TYPE_FLAGS (func_type
) |= TYPE_FLAG_PROTOTYPED
;
2617 case 'k': /* Const qualifier on some type (Sun) */
2618 type
= read_type (pp
, objfile
);
2619 type
= make_cv_type (1, TYPE_VOLATILE (type
), type
,
2620 dbx_lookup_type (typenums
));
2623 case 'B': /* Volatile qual on some type (Sun) */
2624 type
= read_type (pp
, objfile
);
2625 type
= make_cv_type (TYPE_CONST (type
), 1, type
,
2626 dbx_lookup_type (typenums
));
2630 if (isdigit (**pp
) || **pp
== '(' || **pp
== '-')
2631 { /* Member (class & variable) type */
2632 /* FIXME -- we should be doing smash_to_XXX types here. */
2634 struct type
*domain
= read_type (pp
, objfile
);
2635 struct type
*memtype
;
2638 /* Invalid member type data format. */
2639 return error_type (pp
, objfile
);
2642 memtype
= read_type (pp
, objfile
);
2643 type
= dbx_alloc_type (typenums
, objfile
);
2644 smash_to_member_type (type
, domain
, memtype
);
2647 /* type attribute */
2650 /* Skip to the semicolon. */
2651 while (**pp
!= ';' && **pp
!= '\0')
2654 return error_type (pp
, objfile
);
2656 ++ * pp
; /* Skip the semicolon. */
2660 case 's': /* Size attribute */
2661 type_size
= atoi (attr
+ 1);
2666 case 'S': /* String attribute */
2667 /* FIXME: check to see if following type is array? */
2671 case 'V': /* Vector attribute */
2672 /* FIXME: check to see if following type is array? */
2677 /* Ignore unrecognized type attributes, so future compilers
2678 can invent new ones. */
2686 case '#': /* Method (class & fn) type */
2687 if ((*pp
)[0] == '#')
2689 /* We'll get the parameter types from the name. */
2690 struct type
*return_type
;
2693 return_type
= read_type (pp
, objfile
);
2694 if (*(*pp
)++ != ';')
2695 complaint (&symfile_complaints
,
2696 "invalid (minimal) member type data format at symtab pos %d.",
2698 type
= allocate_stub_method (return_type
);
2699 if (typenums
[0] != -1)
2700 *dbx_lookup_type (typenums
) = type
;
2704 struct type
*domain
= read_type (pp
, objfile
);
2705 struct type
*return_type
;
2710 /* Invalid member type data format. */
2711 return error_type (pp
, objfile
);
2715 return_type
= read_type (pp
, objfile
);
2716 args
= read_args (pp
, ';', objfile
, &nargs
, &varargs
);
2717 type
= dbx_alloc_type (typenums
, objfile
);
2718 smash_to_method_type (type
, domain
, return_type
, args
,
2723 case 'r': /* Range type */
2724 type
= read_range_type (pp
, typenums
, objfile
);
2725 if (typenums
[0] != -1)
2726 *dbx_lookup_type (typenums
) = type
;
2731 /* Sun ACC builtin int type */
2732 type
= read_sun_builtin_type (pp
, typenums
, objfile
);
2733 if (typenums
[0] != -1)
2734 *dbx_lookup_type (typenums
) = type
;
2738 case 'R': /* Sun ACC builtin float type */
2739 type
= read_sun_floating_type (pp
, typenums
, objfile
);
2740 if (typenums
[0] != -1)
2741 *dbx_lookup_type (typenums
) = type
;
2744 case 'e': /* Enumeration type */
2745 type
= dbx_alloc_type (typenums
, objfile
);
2746 type
= read_enum_type (pp
, type
, objfile
);
2747 if (typenums
[0] != -1)
2748 *dbx_lookup_type (typenums
) = type
;
2751 case 's': /* Struct type */
2752 case 'u': /* Union type */
2754 enum type_code type_code
= TYPE_CODE_UNDEF
;
2755 type
= dbx_alloc_type (typenums
, objfile
);
2756 switch (type_descriptor
)
2759 type_code
= TYPE_CODE_STRUCT
;
2762 type_code
= TYPE_CODE_UNION
;
2765 type
= read_struct_type (pp
, type
, type_code
, objfile
);
2769 case 'a': /* Array type */
2771 return error_type (pp
, objfile
);
2774 type
= dbx_alloc_type (typenums
, objfile
);
2775 type
= read_array_type (pp
, type
, objfile
);
2777 TYPE_CODE (type
) = TYPE_CODE_STRING
;
2779 TYPE_FLAGS (type
) |= TYPE_FLAG_VECTOR
;
2782 case 'S': /* Set or bitstring type */
2783 type1
= read_type (pp
, objfile
);
2784 type
= create_set_type ((struct type
*) NULL
, type1
);
2786 TYPE_CODE (type
) = TYPE_CODE_BITSTRING
;
2787 if (typenums
[0] != -1)
2788 *dbx_lookup_type (typenums
) = type
;
2792 --*pp
; /* Go back to the symbol in error */
2793 /* Particularly important if it was \0! */
2794 return error_type (pp
, objfile
);
2799 warning ("GDB internal error, type is NULL in stabsread.c\n");
2800 return error_type (pp
, objfile
);
2803 /* Size specified in a type attribute overrides any other size. */
2804 if (type_size
!= -1)
2805 TYPE_LENGTH (type
) = (type_size
+ TARGET_CHAR_BIT
- 1) / TARGET_CHAR_BIT
;
2810 /* RS/6000 xlc/dbx combination uses a set of builtin types, starting from -1.
2811 Return the proper type node for a given builtin type number. */
2813 static struct type
*
2814 rs6000_builtin_type (int typenum
)
2816 /* We recognize types numbered from -NUMBER_RECOGNIZED to -1. */
2817 #define NUMBER_RECOGNIZED 34
2818 /* This includes an empty slot for type number -0. */
2819 static struct type
*negative_types
[NUMBER_RECOGNIZED
+ 1];
2820 struct type
*rettype
= NULL
;
2822 if (typenum
>= 0 || typenum
< -NUMBER_RECOGNIZED
)
2824 complaint (&symfile_complaints
, "Unknown builtin type %d", typenum
);
2825 return builtin_type_error
;
2827 if (negative_types
[-typenum
] != NULL
)
2828 return negative_types
[-typenum
];
2830 #if TARGET_CHAR_BIT != 8
2831 #error This code wrong for TARGET_CHAR_BIT not 8
2832 /* These definitions all assume that TARGET_CHAR_BIT is 8. I think
2833 that if that ever becomes not true, the correct fix will be to
2834 make the size in the struct type to be in bits, not in units of
2841 /* The size of this and all the other types are fixed, defined
2842 by the debugging format. If there is a type called "int" which
2843 is other than 32 bits, then it should use a new negative type
2844 number (or avoid negative type numbers for that case).
2845 See stabs.texinfo. */
2846 rettype
= init_type (TYPE_CODE_INT
, 4, 0, "int", NULL
);
2849 rettype
= init_type (TYPE_CODE_INT
, 1, 0, "char", NULL
);
2852 rettype
= init_type (TYPE_CODE_INT
, 2, 0, "short", NULL
);
2855 rettype
= init_type (TYPE_CODE_INT
, 4, 0, "long", NULL
);
2858 rettype
= init_type (TYPE_CODE_INT
, 1, TYPE_FLAG_UNSIGNED
,
2859 "unsigned char", NULL
);
2862 rettype
= init_type (TYPE_CODE_INT
, 1, 0, "signed char", NULL
);
2865 rettype
= init_type (TYPE_CODE_INT
, 2, TYPE_FLAG_UNSIGNED
,
2866 "unsigned short", NULL
);
2869 rettype
= init_type (TYPE_CODE_INT
, 4, TYPE_FLAG_UNSIGNED
,
2870 "unsigned int", NULL
);
2873 rettype
= init_type (TYPE_CODE_INT
, 4, TYPE_FLAG_UNSIGNED
,
2876 rettype
= init_type (TYPE_CODE_INT
, 4, TYPE_FLAG_UNSIGNED
,
2877 "unsigned long", NULL
);
2880 rettype
= init_type (TYPE_CODE_VOID
, 1, 0, "void", NULL
);
2883 /* IEEE single precision (32 bit). */
2884 rettype
= init_type (TYPE_CODE_FLT
, 4, 0, "float", NULL
);
2887 /* IEEE double precision (64 bit). */
2888 rettype
= init_type (TYPE_CODE_FLT
, 8, 0, "double", NULL
);
2891 /* This is an IEEE double on the RS/6000, and different machines with
2892 different sizes for "long double" should use different negative
2893 type numbers. See stabs.texinfo. */
2894 rettype
= init_type (TYPE_CODE_FLT
, 8, 0, "long double", NULL
);
2897 rettype
= init_type (TYPE_CODE_INT
, 4, 0, "integer", NULL
);
2900 rettype
= init_type (TYPE_CODE_BOOL
, 4, TYPE_FLAG_UNSIGNED
,
2904 rettype
= init_type (TYPE_CODE_FLT
, 4, 0, "short real", NULL
);
2907 rettype
= init_type (TYPE_CODE_FLT
, 8, 0, "real", NULL
);
2910 rettype
= init_type (TYPE_CODE_ERROR
, 0, 0, "stringptr", NULL
);
2913 rettype
= init_type (TYPE_CODE_CHAR
, 1, TYPE_FLAG_UNSIGNED
,
2917 rettype
= init_type (TYPE_CODE_BOOL
, 1, TYPE_FLAG_UNSIGNED
,
2921 rettype
= init_type (TYPE_CODE_BOOL
, 2, TYPE_FLAG_UNSIGNED
,
2925 rettype
= init_type (TYPE_CODE_BOOL
, 4, TYPE_FLAG_UNSIGNED
,
2929 rettype
= init_type (TYPE_CODE_BOOL
, 4, TYPE_FLAG_UNSIGNED
,
2933 /* Complex type consisting of two IEEE single precision values. */
2934 rettype
= init_type (TYPE_CODE_COMPLEX
, 8, 0, "complex", NULL
);
2935 TYPE_TARGET_TYPE (rettype
) = init_type (TYPE_CODE_FLT
, 4, 0, "float",
2939 /* Complex type consisting of two IEEE double precision values. */
2940 rettype
= init_type (TYPE_CODE_COMPLEX
, 16, 0, "double complex", NULL
);
2941 TYPE_TARGET_TYPE (rettype
) = init_type (TYPE_CODE_FLT
, 8, 0, "double",
2945 rettype
= init_type (TYPE_CODE_INT
, 1, 0, "integer*1", NULL
);
2948 rettype
= init_type (TYPE_CODE_INT
, 2, 0, "integer*2", NULL
);
2951 rettype
= init_type (TYPE_CODE_INT
, 4, 0, "integer*4", NULL
);
2954 rettype
= init_type (TYPE_CODE_CHAR
, 2, 0, "wchar", NULL
);
2957 rettype
= init_type (TYPE_CODE_INT
, 8, 0, "long long", NULL
);
2960 rettype
= init_type (TYPE_CODE_INT
, 8, TYPE_FLAG_UNSIGNED
,
2961 "unsigned long long", NULL
);
2964 rettype
= init_type (TYPE_CODE_INT
, 8, TYPE_FLAG_UNSIGNED
,
2968 rettype
= init_type (TYPE_CODE_INT
, 8, 0, "integer*8", NULL
);
2971 negative_types
[-typenum
] = rettype
;
2975 /* This page contains subroutines of read_type. */
2977 /* Replace *OLD_NAME with the method name portion of PHYSNAME. */
2980 update_method_name_from_physname (char **old_name
, char *physname
)
2984 method_name
= method_name_from_physname (physname
);
2986 if (method_name
== NULL
)
2988 complaint (&symfile_complaints
,
2989 "Method has bad physname %s\n", physname
);
2993 if (strcmp (*old_name
, method_name
) != 0)
2996 *old_name
= method_name
;
2999 xfree (method_name
);
3002 /* Read member function stabs info for C++ classes. The form of each member
3005 NAME :: TYPENUM[=type definition] ARGS : PHYSNAME ;
3007 An example with two member functions is:
3009 afunc1::20=##15;:i;2A.;afunc2::20:i;2A.;
3011 For the case of overloaded operators, the format is op$::*.funcs, where
3012 $ is the CPLUS_MARKER (usually '$'), `*' holds the place for an operator
3013 name (such as `+=') and `.' marks the end of the operator name.
3015 Returns 1 for success, 0 for failure. */
3018 read_member_functions (struct field_info
*fip
, char **pp
, struct type
*type
,
3019 struct objfile
*objfile
)
3023 /* Total number of member functions defined in this class. If the class
3024 defines two `f' functions, and one `g' function, then this will have
3026 int total_length
= 0;
3030 struct next_fnfield
*next
;
3031 struct fn_field fn_field
;
3034 struct type
*look_ahead_type
;
3035 struct next_fnfieldlist
*new_fnlist
;
3036 struct next_fnfield
*new_sublist
;
3040 /* Process each list until we find something that is not a member function
3041 or find the end of the functions. */
3045 /* We should be positioned at the start of the function name.
3046 Scan forward to find the first ':' and if it is not the
3047 first of a "::" delimiter, then this is not a member function. */
3059 look_ahead_type
= NULL
;
3062 new_fnlist
= (struct next_fnfieldlist
*)
3063 xmalloc (sizeof (struct next_fnfieldlist
));
3064 make_cleanup (xfree
, new_fnlist
);
3065 memset (new_fnlist
, 0, sizeof (struct next_fnfieldlist
));
3067 if ((*pp
)[0] == 'o' && (*pp
)[1] == 'p' && is_cplus_marker ((*pp
)[2]))
3069 /* This is a completely wierd case. In order to stuff in the
3070 names that might contain colons (the usual name delimiter),
3071 Mike Tiemann defined a different name format which is
3072 signalled if the identifier is "op$". In that case, the
3073 format is "op$::XXXX." where XXXX is the name. This is
3074 used for names like "+" or "=". YUUUUUUUK! FIXME! */
3075 /* This lets the user type "break operator+".
3076 We could just put in "+" as the name, but that wouldn't
3078 static char opname
[32] = "op$";
3079 char *o
= opname
+ 3;
3081 /* Skip past '::'. */
3084 STABS_CONTINUE (pp
, objfile
);
3090 main_fn_name
= savestring (opname
, o
- opname
);
3096 main_fn_name
= savestring (*pp
, p
- *pp
);
3097 /* Skip past '::'. */
3100 new_fnlist
->fn_fieldlist
.name
= main_fn_name
;
3105 (struct next_fnfield
*) xmalloc (sizeof (struct next_fnfield
));
3106 make_cleanup (xfree
, new_sublist
);
3107 memset (new_sublist
, 0, sizeof (struct next_fnfield
));
3109 /* Check for and handle cretinous dbx symbol name continuation! */
3110 if (look_ahead_type
== NULL
)
3113 STABS_CONTINUE (pp
, objfile
);
3115 new_sublist
->fn_field
.type
= read_type (pp
, objfile
);
3118 /* Invalid symtab info for member function. */
3124 /* g++ version 1 kludge */
3125 new_sublist
->fn_field
.type
= look_ahead_type
;
3126 look_ahead_type
= NULL
;
3136 /* If this is just a stub, then we don't have the real name here. */
3138 if (TYPE_STUB (new_sublist
->fn_field
.type
))
3140 if (!TYPE_DOMAIN_TYPE (new_sublist
->fn_field
.type
))
3141 TYPE_DOMAIN_TYPE (new_sublist
->fn_field
.type
) = type
;
3142 new_sublist
->fn_field
.is_stub
= 1;
3144 new_sublist
->fn_field
.physname
= savestring (*pp
, p
- *pp
);
3147 /* Set this member function's visibility fields. */
3150 case VISIBILITY_PRIVATE
:
3151 new_sublist
->fn_field
.is_private
= 1;
3153 case VISIBILITY_PROTECTED
:
3154 new_sublist
->fn_field
.is_protected
= 1;
3158 STABS_CONTINUE (pp
, objfile
);
3161 case 'A': /* Normal functions. */
3162 new_sublist
->fn_field
.is_const
= 0;
3163 new_sublist
->fn_field
.is_volatile
= 0;
3166 case 'B': /* `const' member functions. */
3167 new_sublist
->fn_field
.is_const
= 1;
3168 new_sublist
->fn_field
.is_volatile
= 0;
3171 case 'C': /* `volatile' member function. */
3172 new_sublist
->fn_field
.is_const
= 0;
3173 new_sublist
->fn_field
.is_volatile
= 1;
3176 case 'D': /* `const volatile' member function. */
3177 new_sublist
->fn_field
.is_const
= 1;
3178 new_sublist
->fn_field
.is_volatile
= 1;
3181 case '*': /* File compiled with g++ version 1 -- no info */
3186 complaint (&symfile_complaints
,
3187 "const/volatile indicator missing, got '%c'", **pp
);
3196 /* virtual member function, followed by index.
3197 The sign bit is set to distinguish pointers-to-methods
3198 from virtual function indicies. Since the array is
3199 in words, the quantity must be shifted left by 1
3200 on 16 bit machine, and by 2 on 32 bit machine, forcing
3201 the sign bit out, and usable as a valid index into
3202 the array. Remove the sign bit here. */
3203 new_sublist
->fn_field
.voffset
=
3204 (0x7fffffff & read_huge_number (pp
, ';', &nbits
)) + 2;
3208 STABS_CONTINUE (pp
, objfile
);
3209 if (**pp
== ';' || **pp
== '\0')
3211 /* Must be g++ version 1. */
3212 new_sublist
->fn_field
.fcontext
= 0;
3216 /* Figure out from whence this virtual function came.
3217 It may belong to virtual function table of
3218 one of its baseclasses. */
3219 look_ahead_type
= read_type (pp
, objfile
);
3222 /* g++ version 1 overloaded methods. */
3226 new_sublist
->fn_field
.fcontext
= look_ahead_type
;
3235 look_ahead_type
= NULL
;
3241 /* static member function. */
3243 int slen
= strlen (main_fn_name
);
3245 new_sublist
->fn_field
.voffset
= VOFFSET_STATIC
;
3247 /* For static member functions, we can't tell if they
3248 are stubbed, as they are put out as functions, and not as
3250 GCC v2 emits the fully mangled name if
3251 dbxout.c:flag_minimal_debug is not set, so we have to
3252 detect a fully mangled physname here and set is_stub
3253 accordingly. Fully mangled physnames in v2 start with
3254 the member function name, followed by two underscores.
3255 GCC v3 currently always emits stubbed member functions,
3256 but with fully mangled physnames, which start with _Z. */
3257 if (!(strncmp (new_sublist
->fn_field
.physname
,
3258 main_fn_name
, slen
) == 0
3259 && new_sublist
->fn_field
.physname
[slen
] == '_'
3260 && new_sublist
->fn_field
.physname
[slen
+ 1] == '_'))
3262 new_sublist
->fn_field
.is_stub
= 1;
3269 complaint (&symfile_complaints
,
3270 "member function type missing, got '%c'", (*pp
)[-1]);
3271 /* Fall through into normal member function. */
3274 /* normal member function. */
3275 new_sublist
->fn_field
.voffset
= 0;
3276 new_sublist
->fn_field
.fcontext
= 0;
3280 new_sublist
->next
= sublist
;
3281 sublist
= new_sublist
;
3283 STABS_CONTINUE (pp
, objfile
);
3285 while (**pp
!= ';' && **pp
!= '\0');
3288 STABS_CONTINUE (pp
, objfile
);
3290 /* Skip GCC 3.X member functions which are duplicates of the callable
3291 constructor/destructor. */
3292 if (strcmp (main_fn_name
, "__base_ctor") == 0
3293 || strcmp (main_fn_name
, "__base_dtor") == 0
3294 || strcmp (main_fn_name
, "__deleting_dtor") == 0)
3296 xfree (main_fn_name
);
3301 int has_destructor
= 0, has_other
= 0;
3303 struct next_fnfield
*tmp_sublist
;
3305 /* Various versions of GCC emit various mostly-useless
3306 strings in the name field for special member functions.
3308 For stub methods, we need to defer correcting the name
3309 until we are ready to unstub the method, because the current
3310 name string is used by gdb_mangle_name. The only stub methods
3311 of concern here are GNU v2 operators; other methods have their
3312 names correct (see caveat below).
3314 For non-stub methods, in GNU v3, we have a complete physname.
3315 Therefore we can safely correct the name now. This primarily
3316 affects constructors and destructors, whose name will be
3317 __comp_ctor or __comp_dtor instead of Foo or ~Foo. Cast
3318 operators will also have incorrect names; for instance,
3319 "operator int" will be named "operator i" (i.e. the type is
3322 For non-stub methods in GNU v2, we have no easy way to
3323 know if we have a complete physname or not. For most
3324 methods the result depends on the platform (if CPLUS_MARKER
3325 can be `$' or `.', it will use minimal debug information, or
3326 otherwise the full physname will be included).
3328 Rather than dealing with this, we take a different approach.
3329 For v3 mangled names, we can use the full physname; for v2,
3330 we use cplus_demangle_opname (which is actually v2 specific),
3331 because the only interesting names are all operators - once again
3332 barring the caveat below. Skip this process if any method in the
3333 group is a stub, to prevent our fouling up the workings of
3336 The caveat: GCC 2.95.x (and earlier?) put constructors and
3337 destructors in the same method group. We need to split this
3338 into two groups, because they should have different names.
3339 So for each method group we check whether it contains both
3340 routines whose physname appears to be a destructor (the physnames
3341 for and destructors are always provided, due to quirks in v2
3342 mangling) and routines whose physname does not appear to be a
3343 destructor. If so then we break up the list into two halves.
3344 Even if the constructors and destructors aren't in the same group
3345 the destructor will still lack the leading tilde, so that also
3348 So, to summarize what we expect and handle here:
3350 Given Given Real Real Action
3351 method name physname physname method name
3353 __opi [none] __opi__3Foo operator int opname
3355 Foo _._3Foo _._3Foo ~Foo separate and
3357 operator i _ZN3FoocviEv _ZN3FoocviEv operator int demangle
3358 __comp_ctor _ZN3FooC1ERKS_ _ZN3FooC1ERKS_ Foo demangle
3361 tmp_sublist
= sublist
;
3362 while (tmp_sublist
!= NULL
)
3364 if (tmp_sublist
->fn_field
.is_stub
)
3366 if (tmp_sublist
->fn_field
.physname
[0] == '_'
3367 && tmp_sublist
->fn_field
.physname
[1] == 'Z')
3370 if (is_destructor_name (tmp_sublist
->fn_field
.physname
))
3375 tmp_sublist
= tmp_sublist
->next
;
3378 if (has_destructor
&& has_other
)
3380 struct next_fnfieldlist
*destr_fnlist
;
3381 struct next_fnfield
*last_sublist
;
3383 /* Create a new fn_fieldlist for the destructors. */
3385 destr_fnlist
= (struct next_fnfieldlist
*)
3386 xmalloc (sizeof (struct next_fnfieldlist
));
3387 make_cleanup (xfree
, destr_fnlist
);
3388 memset (destr_fnlist
, 0, sizeof (struct next_fnfieldlist
));
3389 destr_fnlist
->fn_fieldlist
.name
3390 = obconcat (&objfile
->type_obstack
, "", "~",
3391 new_fnlist
->fn_fieldlist
.name
);
3393 destr_fnlist
->fn_fieldlist
.fn_fields
= (struct fn_field
*)
3394 obstack_alloc (&objfile
->type_obstack
,
3395 sizeof (struct fn_field
) * has_destructor
);
3396 memset (destr_fnlist
->fn_fieldlist
.fn_fields
, 0,
3397 sizeof (struct fn_field
) * has_destructor
);
3398 tmp_sublist
= sublist
;
3399 last_sublist
= NULL
;
3401 while (tmp_sublist
!= NULL
)
3403 if (!is_destructor_name (tmp_sublist
->fn_field
.physname
))
3405 tmp_sublist
= tmp_sublist
->next
;
3409 destr_fnlist
->fn_fieldlist
.fn_fields
[i
++]
3410 = tmp_sublist
->fn_field
;
3412 last_sublist
->next
= tmp_sublist
->next
;
3414 sublist
= tmp_sublist
->next
;
3415 last_sublist
= tmp_sublist
;
3416 tmp_sublist
= tmp_sublist
->next
;
3419 destr_fnlist
->fn_fieldlist
.length
= has_destructor
;
3420 destr_fnlist
->next
= fip
->fnlist
;
3421 fip
->fnlist
= destr_fnlist
;
3423 total_length
+= has_destructor
;
3424 length
-= has_destructor
;
3428 /* v3 mangling prevents the use of abbreviated physnames,
3429 so we can do this here. There are stubbed methods in v3
3431 - in -gstabs instead of -gstabs+
3432 - or for static methods, which are output as a function type
3433 instead of a method type. */
3435 update_method_name_from_physname (&new_fnlist
->fn_fieldlist
.name
,
3436 sublist
->fn_field
.physname
);
3438 else if (has_destructor
&& new_fnlist
->fn_fieldlist
.name
[0] != '~')
3440 new_fnlist
->fn_fieldlist
.name
= concat ("~", main_fn_name
, NULL
);
3441 xfree (main_fn_name
);
3445 char dem_opname
[256];
3447 ret
= cplus_demangle_opname (new_fnlist
->fn_fieldlist
.name
,
3448 dem_opname
, DMGL_ANSI
);
3450 ret
= cplus_demangle_opname (new_fnlist
->fn_fieldlist
.name
,
3453 new_fnlist
->fn_fieldlist
.name
3454 = obsavestring (dem_opname
, strlen (dem_opname
),
3455 &objfile
->type_obstack
);
3458 new_fnlist
->fn_fieldlist
.fn_fields
= (struct fn_field
*)
3459 obstack_alloc (&objfile
->type_obstack
,
3460 sizeof (struct fn_field
) * length
);
3461 memset (new_fnlist
->fn_fieldlist
.fn_fields
, 0,
3462 sizeof (struct fn_field
) * length
);
3463 for (i
= length
; (i
--, sublist
); sublist
= sublist
->next
)
3465 new_fnlist
->fn_fieldlist
.fn_fields
[i
] = sublist
->fn_field
;
3468 new_fnlist
->fn_fieldlist
.length
= length
;
3469 new_fnlist
->next
= fip
->fnlist
;
3470 fip
->fnlist
= new_fnlist
;
3472 total_length
+= length
;
3478 ALLOCATE_CPLUS_STRUCT_TYPE (type
);
3479 TYPE_FN_FIELDLISTS (type
) = (struct fn_fieldlist
*)
3480 TYPE_ALLOC (type
, sizeof (struct fn_fieldlist
) * nfn_fields
);
3481 memset (TYPE_FN_FIELDLISTS (type
), 0,
3482 sizeof (struct fn_fieldlist
) * nfn_fields
);
3483 TYPE_NFN_FIELDS (type
) = nfn_fields
;
3484 TYPE_NFN_FIELDS_TOTAL (type
) = total_length
;
3490 /* Special GNU C++ name.
3492 Returns 1 for success, 0 for failure. "failure" means that we can't
3493 keep parsing and it's time for error_type(). */
3496 read_cpp_abbrev (struct field_info
*fip
, char **pp
, struct type
*type
,
3497 struct objfile
*objfile
)
3502 struct type
*context
;
3512 /* At this point, *pp points to something like "22:23=*22...",
3513 where the type number before the ':' is the "context" and
3514 everything after is a regular type definition. Lookup the
3515 type, find it's name, and construct the field name. */
3517 context
= read_type (pp
, objfile
);
3521 case 'f': /* $vf -- a virtual function table pointer */
3522 name
= type_name_no_tag (context
);
3527 fip
->list
->field
.name
=
3528 obconcat (&objfile
->type_obstack
, vptr_name
, name
, "");
3531 case 'b': /* $vb -- a virtual bsomethingorother */
3532 name
= type_name_no_tag (context
);
3535 complaint (&symfile_complaints
,
3536 "C++ abbreviated type name unknown at symtab pos %d",
3540 fip
->list
->field
.name
=
3541 obconcat (&objfile
->type_obstack
, vb_name
, name
, "");
3545 invalid_cpp_abbrev_complaint (*pp
);
3546 fip
->list
->field
.name
=
3547 obconcat (&objfile
->type_obstack
,
3548 "INVALID_CPLUSPLUS_ABBREV", "", "");
3552 /* At this point, *pp points to the ':'. Skip it and read the
3558 invalid_cpp_abbrev_complaint (*pp
);
3561 fip
->list
->field
.type
= read_type (pp
, objfile
);
3563 (*pp
)++; /* Skip the comma. */
3569 FIELD_BITPOS (fip
->list
->field
) = read_huge_number (pp
, ';', &nbits
);
3573 /* This field is unpacked. */
3574 FIELD_BITSIZE (fip
->list
->field
) = 0;
3575 fip
->list
->visibility
= VISIBILITY_PRIVATE
;
3579 invalid_cpp_abbrev_complaint (*pp
);
3580 /* We have no idea what syntax an unrecognized abbrev would have, so
3581 better return 0. If we returned 1, we would need to at least advance
3582 *pp to avoid an infinite loop. */
3589 read_one_struct_field (struct field_info
*fip
, char **pp
, char *p
,
3590 struct type
*type
, struct objfile
*objfile
)
3592 #if 0 /* OBSOLETE CFront */
3593 // OBSOLETE /* The following is code to work around cfront generated stabs.
3594 // OBSOLETE The stabs contains full mangled name for each field.
3595 // OBSOLETE We try to demangle the name and extract the field name out of it.
3597 // OBSOLETE if (ARM_DEMANGLING && current_subfile->language == language_cplus)
3599 // OBSOLETE char save_p;
3600 // OBSOLETE char *dem, *dem_p;
3601 // OBSOLETE save_p = *p;
3602 // OBSOLETE *p = '\0';
3603 // OBSOLETE dem = cplus_demangle (*pp, DMGL_ANSI | DMGL_PARAMS);
3604 // OBSOLETE if (dem != NULL)
3606 // OBSOLETE dem_p = strrchr (dem, ':');
3607 // OBSOLETE if (dem_p != 0 && *(dem_p - 1) == ':')
3608 // OBSOLETE dem_p++;
3609 // OBSOLETE FIELD_NAME (fip->list->field) =
3610 // OBSOLETE obsavestring (dem_p, strlen (dem_p), &objfile->type_obstack);
3614 // OBSOLETE FIELD_NAME (fip->list->field) =
3615 // OBSOLETE obsavestring (*pp, p - *pp, &objfile->type_obstack);
3617 // OBSOLETE *p = save_p;
3619 // OBSOLETE /* end of code for cfront work around */
3622 #endif /* OBSOLETE CFront */
3623 fip
->list
->field
.name
=
3624 obsavestring (*pp
, p
- *pp
, &objfile
->type_obstack
);
3627 /* This means we have a visibility for a field coming. */
3631 fip
->list
->visibility
= *(*pp
)++;
3635 /* normal dbx-style format, no explicit visibility */
3636 fip
->list
->visibility
= VISIBILITY_PUBLIC
;
3639 fip
->list
->field
.type
= read_type (pp
, objfile
);
3644 /* Possible future hook for nested types. */
3647 fip
->list
->field
.bitpos
= (long) -2; /* nested type */
3657 /* Static class member. */
3658 SET_FIELD_PHYSNAME (fip
->list
->field
, savestring (*pp
, p
- *pp
));
3662 else if (**pp
!= ',')
3664 /* Bad structure-type format. */
3665 stabs_general_complaint ("bad structure-type format");
3669 (*pp
)++; /* Skip the comma. */
3673 FIELD_BITPOS (fip
->list
->field
) = read_huge_number (pp
, ',', &nbits
);
3676 stabs_general_complaint ("bad structure-type format");
3679 FIELD_BITSIZE (fip
->list
->field
) = read_huge_number (pp
, ';', &nbits
);
3682 stabs_general_complaint ("bad structure-type format");
3687 if (FIELD_BITPOS (fip
->list
->field
) == 0
3688 && FIELD_BITSIZE (fip
->list
->field
) == 0)
3690 /* This can happen in two cases: (1) at least for gcc 2.4.5 or so,
3691 it is a field which has been optimized out. The correct stab for
3692 this case is to use VISIBILITY_IGNORE, but that is a recent
3693 invention. (2) It is a 0-size array. For example
3694 union { int num; char str[0]; } foo. Printing "<no value>" for
3695 str in "p foo" is OK, since foo.str (and thus foo.str[3])
3696 will continue to work, and a 0-size array as a whole doesn't
3697 have any contents to print.
3699 I suspect this probably could also happen with gcc -gstabs (not
3700 -gstabs+) for static fields, and perhaps other C++ extensions.
3701 Hopefully few people use -gstabs with gdb, since it is intended
3702 for dbx compatibility. */
3704 /* Ignore this field. */
3705 fip
->list
->visibility
= VISIBILITY_IGNORE
;
3709 /* Detect an unpacked field and mark it as such.
3710 dbx gives a bit size for all fields.
3711 Note that forward refs cannot be packed,
3712 and treat enums as if they had the width of ints. */
3714 struct type
*field_type
= check_typedef (FIELD_TYPE (fip
->list
->field
));
3716 if (TYPE_CODE (field_type
) != TYPE_CODE_INT
3717 && TYPE_CODE (field_type
) != TYPE_CODE_RANGE
3718 && TYPE_CODE (field_type
) != TYPE_CODE_BOOL
3719 && TYPE_CODE (field_type
) != TYPE_CODE_ENUM
)
3721 FIELD_BITSIZE (fip
->list
->field
) = 0;
3723 if ((FIELD_BITSIZE (fip
->list
->field
)
3724 == TARGET_CHAR_BIT
* TYPE_LENGTH (field_type
)
3725 || (TYPE_CODE (field_type
) == TYPE_CODE_ENUM
3726 && FIELD_BITSIZE (fip
->list
->field
) == TARGET_INT_BIT
)
3729 FIELD_BITPOS (fip
->list
->field
) % 8 == 0)
3731 FIELD_BITSIZE (fip
->list
->field
) = 0;
3737 /* Read struct or class data fields. They have the form:
3739 NAME : [VISIBILITY] TYPENUM , BITPOS , BITSIZE ;
3741 At the end, we see a semicolon instead of a field.
3743 In C++, this may wind up being NAME:?TYPENUM:PHYSNAME; for
3746 The optional VISIBILITY is one of:
3748 '/0' (VISIBILITY_PRIVATE)
3749 '/1' (VISIBILITY_PROTECTED)
3750 '/2' (VISIBILITY_PUBLIC)
3751 '/9' (VISIBILITY_IGNORE)
3753 or nothing, for C style fields with public visibility.
3755 Returns 1 for success, 0 for failure. */
3758 read_struct_fields (struct field_info
*fip
, char **pp
, struct type
*type
,
3759 struct objfile
*objfile
)
3762 struct nextfield
*new;
3764 /* We better set p right now, in case there are no fields at all... */
3768 /* Read each data member type until we find the terminating ';' at the end of
3769 the data member list, or break for some other reason such as finding the
3770 start of the member function list. */
3771 /* Stab string for structure/union does not end with two ';' in
3772 SUN C compiler 5.3 i.e. F6U2, hence check for end of string. */
3774 while (**pp
!= ';' && **pp
!= '\0')
3776 STABS_CONTINUE (pp
, objfile
);
3777 /* Get space to record the next field's data. */
3778 new = (struct nextfield
*) xmalloc (sizeof (struct nextfield
));
3779 make_cleanup (xfree
, new);
3780 memset (new, 0, sizeof (struct nextfield
));
3781 new->next
= fip
->list
;
3784 /* Get the field name. */
3787 /* If is starts with CPLUS_MARKER it is a special abbreviation,
3788 unless the CPLUS_MARKER is followed by an underscore, in
3789 which case it is just the name of an anonymous type, which we
3790 should handle like any other type name. */
3792 if (is_cplus_marker (p
[0]) && p
[1] != '_')
3794 if (!read_cpp_abbrev (fip
, pp
, type
, objfile
))
3799 /* Look for the ':' that separates the field name from the field
3800 values. Data members are delimited by a single ':', while member
3801 functions are delimited by a pair of ':'s. When we hit the member
3802 functions (if any), terminate scan loop and return. */
3804 while (*p
!= ':' && *p
!= '\0')
3811 /* Check to see if we have hit the member functions yet. */
3816 read_one_struct_field (fip
, pp
, p
, type
, objfile
);
3818 if (p
[0] == ':' && p
[1] == ':')
3820 /* (the deleted) chill the list of fields: the last entry (at
3821 the head) is a partially constructed entry which we now
3823 fip
->list
= fip
->list
->next
;
3828 /* The stabs for C++ derived classes contain baseclass information which
3829 is marked by a '!' character after the total size. This function is
3830 called when we encounter the baseclass marker, and slurps up all the
3831 baseclass information.
3833 Immediately following the '!' marker is the number of base classes that
3834 the class is derived from, followed by information for each base class.
3835 For each base class, there are two visibility specifiers, a bit offset
3836 to the base class information within the derived class, a reference to
3837 the type for the base class, and a terminating semicolon.
3839 A typical example, with two base classes, would be "!2,020,19;0264,21;".
3841 Baseclass information marker __________________|| | | | | | |
3842 Number of baseclasses __________________________| | | | | | |
3843 Visibility specifiers (2) ________________________| | | | | |
3844 Offset in bits from start of class _________________| | | | |
3845 Type number for base class ___________________________| | | |
3846 Visibility specifiers (2) _______________________________| | |
3847 Offset in bits from start of class ________________________| |
3848 Type number of base class ____________________________________|
3850 Return 1 for success, 0 for (error-type-inducing) failure. */
3856 read_baseclasses (struct field_info
*fip
, char **pp
, struct type
*type
,
3857 struct objfile
*objfile
)
3860 struct nextfield
*new;
3868 /* Skip the '!' baseclass information marker. */
3872 ALLOCATE_CPLUS_STRUCT_TYPE (type
);
3875 TYPE_N_BASECLASSES (type
) = read_huge_number (pp
, ',', &nbits
);
3881 /* Some stupid compilers have trouble with the following, so break
3882 it up into simpler expressions. */
3883 TYPE_FIELD_VIRTUAL_BITS (type
) = (B_TYPE
*)
3884 TYPE_ALLOC (type
, B_BYTES (TYPE_N_BASECLASSES (type
)));
3887 int num_bytes
= B_BYTES (TYPE_N_BASECLASSES (type
));
3890 pointer
= (char *) TYPE_ALLOC (type
, num_bytes
);
3891 TYPE_FIELD_VIRTUAL_BITS (type
) = (B_TYPE
*) pointer
;
3895 B_CLRALL (TYPE_FIELD_VIRTUAL_BITS (type
), TYPE_N_BASECLASSES (type
));
3897 for (i
= 0; i
< TYPE_N_BASECLASSES (type
); i
++)
3899 new = (struct nextfield
*) xmalloc (sizeof (struct nextfield
));
3900 make_cleanup (xfree
, new);
3901 memset (new, 0, sizeof (struct nextfield
));
3902 new->next
= fip
->list
;
3904 FIELD_BITSIZE (new->field
) = 0; /* this should be an unpacked field! */
3906 STABS_CONTINUE (pp
, objfile
);
3910 /* Nothing to do. */
3913 SET_TYPE_FIELD_VIRTUAL (type
, i
);
3916 /* Unknown character. Complain and treat it as non-virtual. */
3918 complaint (&symfile_complaints
,
3919 "Unknown virtual character `%c' for baseclass", **pp
);
3924 new->visibility
= *(*pp
)++;
3925 switch (new->visibility
)
3927 case VISIBILITY_PRIVATE
:
3928 case VISIBILITY_PROTECTED
:
3929 case VISIBILITY_PUBLIC
:
3932 /* Bad visibility format. Complain and treat it as
3935 complaint (&symfile_complaints
,
3936 "Unknown visibility `%c' for baseclass",
3938 new->visibility
= VISIBILITY_PUBLIC
;
3945 /* The remaining value is the bit offset of the portion of the object
3946 corresponding to this baseclass. Always zero in the absence of
3947 multiple inheritance. */
3949 FIELD_BITPOS (new->field
) = read_huge_number (pp
, ',', &nbits
);
3954 /* The last piece of baseclass information is the type of the
3955 base class. Read it, and remember it's type name as this
3958 new->field
.type
= read_type (pp
, objfile
);
3959 new->field
.name
= type_name_no_tag (new->field
.type
);
3961 /* skip trailing ';' and bump count of number of fields seen */
3970 /* The tail end of stabs for C++ classes that contain a virtual function
3971 pointer contains a tilde, a %, and a type number.
3972 The type number refers to the base class (possibly this class itself) which
3973 contains the vtable pointer for the current class.
3975 This function is called when we have parsed all the method declarations,
3976 so we can look for the vptr base class info. */
3979 read_tilde_fields (struct field_info
*fip
, char **pp
, struct type
*type
,
3980 struct objfile
*objfile
)
3984 STABS_CONTINUE (pp
, objfile
);
3986 /* If we are positioned at a ';', then skip it. */
3996 if (**pp
== '=' || **pp
== '+' || **pp
== '-')
3998 /* Obsolete flags that used to indicate the presence
3999 of constructors and/or destructors. */
4003 /* Read either a '%' or the final ';'. */
4004 if (*(*pp
)++ == '%')
4006 /* The next number is the type number of the base class
4007 (possibly our own class) which supplies the vtable for
4008 this class. Parse it out, and search that class to find
4009 its vtable pointer, and install those into TYPE_VPTR_BASETYPE
4010 and TYPE_VPTR_FIELDNO. */
4015 t
= read_type (pp
, objfile
);
4017 while (*p
!= '\0' && *p
!= ';')
4023 /* Premature end of symbol. */
4027 TYPE_VPTR_BASETYPE (type
) = t
;
4028 if (type
== t
) /* Our own class provides vtbl ptr */
4030 for (i
= TYPE_NFIELDS (t
) - 1;
4031 i
>= TYPE_N_BASECLASSES (t
);
4034 char *name
= TYPE_FIELD_NAME (t
, i
);
4035 if (!strncmp (name
, vptr_name
, sizeof (vptr_name
) - 2)
4036 && is_cplus_marker (name
[sizeof (vptr_name
) - 2]))
4038 TYPE_VPTR_FIELDNO (type
) = i
;
4042 /* Virtual function table field not found. */
4043 complaint (&symfile_complaints
,
4044 "virtual function table pointer not found when defining class `%s'",
4050 TYPE_VPTR_FIELDNO (type
) = TYPE_VPTR_FIELDNO (t
);
4061 attach_fn_fields_to_type (struct field_info
*fip
, register struct type
*type
)
4065 for (n
= TYPE_NFN_FIELDS (type
);
4066 fip
->fnlist
!= NULL
;
4067 fip
->fnlist
= fip
->fnlist
->next
)
4069 --n
; /* Circumvent Sun3 compiler bug */
4070 TYPE_FN_FIELDLISTS (type
)[n
] = fip
->fnlist
->fn_fieldlist
;
4075 #if 0 /* OBSOLETE CFront */
4076 // OBSOLETE /* read cfront class static data.
4077 // OBSOLETE pp points to string starting with the list of static data
4078 // OBSOLETE eg: A:ZcA;1@Bpub v2@Bvirpri;__ct__1AFv func__1AFv *sfunc__1AFv ;as__1A ;;
4079 // OBSOLETE ^^^^^^^^
4081 // OBSOLETE A:ZcA;;foopri__1AFv foopro__1AFv __ct__1AFv __ct__1AFRC1A foopub__1AFv ;;;
4085 // OBSOLETE static int
4086 // OBSOLETE read_cfront_static_fields (struct field_info *fip, char **pp, struct type *type,
4087 // OBSOLETE struct objfile *objfile)
4089 // OBSOLETE struct nextfield *new;
4090 // OBSOLETE struct type *stype;
4091 // OBSOLETE char *sname;
4092 // OBSOLETE struct symbol *ref_static = 0;
4094 // OBSOLETE if (**pp == ';') /* no static data; return */
4096 // OBSOLETE ++(*pp);
4097 // OBSOLETE return 1;
4100 // OBSOLETE /* Process each field in the list until we find the terminating ";" */
4102 // OBSOLETE /* eg: p = "as__1A ;;;" */
4103 // OBSOLETE STABS_CONTINUE (pp, objfile); /* handle \\ */
4104 // OBSOLETE while (**pp != ';' && (sname = get_substring (pp, ' '), sname))
4106 // OBSOLETE ref_static = lookup_symbol (sname, 0, VAR_NAMESPACE, 0, 0); /*demangled_name */
4107 // OBSOLETE if (!ref_static)
4109 // OBSOLETE complaint (&symfile_complaints,
4110 // OBSOLETE "Unable to find symbol for static data field %s", sname);
4111 // OBSOLETE continue;
4113 // OBSOLETE stype = SYMBOL_TYPE (ref_static);
4115 // OBSOLETE /* allocate a new fip */
4116 // OBSOLETE new = (struct nextfield *) xmalloc (sizeof (struct nextfield));
4117 // OBSOLETE make_cleanup (xfree, new);
4118 // OBSOLETE memset (new, 0, sizeof (struct nextfield));
4119 // OBSOLETE new->next = fip->list;
4120 // OBSOLETE fip->list = new;
4122 // OBSOLETE /* set visibility */
4123 // OBSOLETE /* FIXME! no way to tell visibility from stabs??? */
4124 // OBSOLETE new->visibility = VISIBILITY_PUBLIC;
4126 // OBSOLETE /* set field info into fip */
4127 // OBSOLETE fip->list->field.type = stype;
4129 // OBSOLETE /* set bitpos & bitsize */
4130 // OBSOLETE SET_FIELD_PHYSNAME (fip->list->field, savestring (sname, strlen (sname)));
4132 // OBSOLETE /* set name field */
4133 // OBSOLETE /* The following is code to work around cfront generated stabs.
4134 // OBSOLETE The stabs contains full mangled name for each field.
4135 // OBSOLETE We try to demangle the name and extract the field name out of it.
4137 // OBSOLETE if (ARM_DEMANGLING)
4139 // OBSOLETE char *dem, *dem_p;
4140 // OBSOLETE dem = cplus_demangle (sname, DMGL_ANSI | DMGL_PARAMS);
4141 // OBSOLETE if (dem != NULL)
4143 // OBSOLETE dem_p = strrchr (dem, ':');
4144 // OBSOLETE if (dem_p != 0 && *(dem_p - 1) == ':')
4145 // OBSOLETE dem_p++;
4146 // OBSOLETE fip->list->field.name =
4147 // OBSOLETE obsavestring (dem_p, strlen (dem_p), &objfile->type_obstack);
4151 // OBSOLETE fip->list->field.name =
4152 // OBSOLETE obsavestring (sname, strlen (sname), &objfile->type_obstack);
4154 // OBSOLETE } /* end of code for cfront work around */
4155 // OBSOLETE } /* loop again for next static field */
4156 // OBSOLETE return 1;
4159 // OBSOLETE /* Copy structure fields to fip so attach_fields_to_type will work.
4160 // OBSOLETE type has already been created with the initial instance data fields.
4161 // OBSOLETE Now we want to be able to add the other members to the class,
4162 // OBSOLETE so we want to add them back to the fip and reattach them again
4163 // OBSOLETE once we have collected all the class members. */
4165 // OBSOLETE static int
4166 // OBSOLETE copy_cfront_struct_fields (struct field_info *fip, struct type *type,
4167 // OBSOLETE struct objfile *objfile)
4169 // OBSOLETE int nfields = TYPE_NFIELDS (type);
4171 // OBSOLETE struct nextfield *new;
4173 // OBSOLETE /* Copy the fields into the list of fips and reset the types
4174 // OBSOLETE to remove the old fields */
4176 // OBSOLETE for (i = 0; i < nfields; i++)
4178 // OBSOLETE /* allocate a new fip */
4179 // OBSOLETE new = (struct nextfield *) xmalloc (sizeof (struct nextfield));
4180 // OBSOLETE make_cleanup (xfree, new);
4181 // OBSOLETE memset (new, 0, sizeof (struct nextfield));
4182 // OBSOLETE new->next = fip->list;
4183 // OBSOLETE fip->list = new;
4185 // OBSOLETE /* copy field info into fip */
4186 // OBSOLETE new->field = TYPE_FIELD (type, i);
4187 // OBSOLETE /* set visibility */
4188 // OBSOLETE if (TYPE_FIELD_PROTECTED (type, i))
4189 // OBSOLETE new->visibility = VISIBILITY_PROTECTED;
4190 // OBSOLETE else if (TYPE_FIELD_PRIVATE (type, i))
4191 // OBSOLETE new->visibility = VISIBILITY_PRIVATE;
4193 // OBSOLETE new->visibility = VISIBILITY_PUBLIC;
4195 // OBSOLETE /* Now delete the fields from the type since we will be
4196 // OBSOLETE allocing new space once we get the rest of the fields
4197 // OBSOLETE in attach_fields_to_type.
4198 // OBSOLETE The pointer TYPE_FIELDS(type) is left dangling but should
4199 // OBSOLETE be freed later by objstack_free */
4200 // OBSOLETE TYPE_FIELDS (type) = 0;
4201 // OBSOLETE TYPE_NFIELDS (type) = 0;
4203 // OBSOLETE return 1;
4205 #endif /* OBSOLETE CFront */
4207 /* Create the vector of fields, and record how big it is.
4208 We need this info to record proper virtual function table information
4209 for this class's virtual functions. */
4212 attach_fields_to_type (struct field_info
*fip
, register struct type
*type
,
4213 struct objfile
*objfile
)
4215 register int nfields
= 0;
4216 register int non_public_fields
= 0;
4217 register struct nextfield
*scan
;
4219 /* Count up the number of fields that we have, as well as taking note of
4220 whether or not there are any non-public fields, which requires us to
4221 allocate and build the private_field_bits and protected_field_bits
4224 for (scan
= fip
->list
; scan
!= NULL
; scan
= scan
->next
)
4227 if (scan
->visibility
!= VISIBILITY_PUBLIC
)
4229 non_public_fields
++;
4233 /* Now we know how many fields there are, and whether or not there are any
4234 non-public fields. Record the field count, allocate space for the
4235 array of fields, and create blank visibility bitfields if necessary. */
4237 TYPE_NFIELDS (type
) = nfields
;
4238 TYPE_FIELDS (type
) = (struct field
*)
4239 TYPE_ALLOC (type
, sizeof (struct field
) * nfields
);
4240 memset (TYPE_FIELDS (type
), 0, sizeof (struct field
) * nfields
);
4242 if (non_public_fields
)
4244 ALLOCATE_CPLUS_STRUCT_TYPE (type
);
4246 TYPE_FIELD_PRIVATE_BITS (type
) =
4247 (B_TYPE
*) TYPE_ALLOC (type
, B_BYTES (nfields
));
4248 B_CLRALL (TYPE_FIELD_PRIVATE_BITS (type
), nfields
);
4250 TYPE_FIELD_PROTECTED_BITS (type
) =
4251 (B_TYPE
*) TYPE_ALLOC (type
, B_BYTES (nfields
));
4252 B_CLRALL (TYPE_FIELD_PROTECTED_BITS (type
), nfields
);
4254 TYPE_FIELD_IGNORE_BITS (type
) =
4255 (B_TYPE
*) TYPE_ALLOC (type
, B_BYTES (nfields
));
4256 B_CLRALL (TYPE_FIELD_IGNORE_BITS (type
), nfields
);
4259 /* Copy the saved-up fields into the field vector. Start from the head
4260 of the list, adding to the tail of the field array, so that they end
4261 up in the same order in the array in which they were added to the list. */
4263 while (nfields
-- > 0)
4265 TYPE_FIELD (type
, nfields
) = fip
->list
->field
;
4266 switch (fip
->list
->visibility
)
4268 case VISIBILITY_PRIVATE
:
4269 SET_TYPE_FIELD_PRIVATE (type
, nfields
);
4272 case VISIBILITY_PROTECTED
:
4273 SET_TYPE_FIELD_PROTECTED (type
, nfields
);
4276 case VISIBILITY_IGNORE
:
4277 SET_TYPE_FIELD_IGNORE (type
, nfields
);
4280 case VISIBILITY_PUBLIC
:
4284 /* Unknown visibility. Complain and treat it as public. */
4286 complaint (&symfile_complaints
, "Unknown visibility `%c' for field",
4287 fip
->list
->visibility
);
4291 fip
->list
= fip
->list
->next
;
4297 /* Complain that the compiler has emitted more than one definition for the
4298 structure type TYPE. */
4300 complain_about_struct_wipeout (struct type
*type
)
4305 if (TYPE_TAG_NAME (type
))
4307 name
= TYPE_TAG_NAME (type
);
4308 switch (TYPE_CODE (type
))
4310 case TYPE_CODE_STRUCT
: kind
= "struct "; break;
4311 case TYPE_CODE_UNION
: kind
= "union "; break;
4312 case TYPE_CODE_ENUM
: kind
= "enum "; break;
4316 else if (TYPE_NAME (type
))
4318 name
= TYPE_NAME (type
);
4327 complaint (&symfile_complaints
,
4328 "struct/union type gets multiply defined: %s%s", kind
, name
);
4332 /* Read the description of a structure (or union type) and return an object
4333 describing the type.
4335 PP points to a character pointer that points to the next unconsumed token
4336 in the the stabs string. For example, given stabs "A:T4=s4a:1,0,32;;",
4337 *PP will point to "4a:1,0,32;;".
4339 TYPE points to an incomplete type that needs to be filled in.
4341 OBJFILE points to the current objfile from which the stabs information is
4342 being read. (Note that it is redundant in that TYPE also contains a pointer
4343 to this same objfile, so it might be a good idea to eliminate it. FIXME).
4346 static struct type
*
4347 read_struct_type (char **pp
, struct type
*type
, enum type_code type_code
,
4348 struct objfile
*objfile
)
4350 struct cleanup
*back_to
;
4351 struct field_info fi
;
4356 /* When describing struct/union/class types in stabs, G++ always drops
4357 all qualifications from the name. So if you've got:
4358 struct A { ... struct B { ... }; ... };
4359 then G++ will emit stabs for `struct A::B' that call it simply
4360 `struct B'. Obviously, if you've got a real top-level definition for
4361 `struct B', or other nested definitions, this is going to cause
4364 Obviously, GDB can't fix this by itself, but it can at least avoid
4365 scribbling on existing structure type objects when new definitions
4367 if (! (TYPE_CODE (type
) == TYPE_CODE_UNDEF
4368 || TYPE_STUB (type
)))
4370 complain_about_struct_wipeout (type
);
4372 /* It's probably best to return the type unchanged. */
4376 back_to
= make_cleanup (null_cleanup
, 0);
4378 INIT_CPLUS_SPECIFIC (type
);
4379 TYPE_CODE (type
) = type_code
;
4380 TYPE_FLAGS (type
) &= ~TYPE_FLAG_STUB
;
4382 /* First comes the total size in bytes. */
4386 TYPE_LENGTH (type
) = read_huge_number (pp
, 0, &nbits
);
4388 return error_type (pp
, objfile
);
4391 /* Now read the baseclasses, if any, read the regular C struct or C++
4392 class member fields, attach the fields to the type, read the C++
4393 member functions, attach them to the type, and then read any tilde
4394 field (baseclass specifier for the class holding the main vtable). */
4396 if (!read_baseclasses (&fi
, pp
, type
, objfile
)
4397 || !read_struct_fields (&fi
, pp
, type
, objfile
)
4398 || !attach_fields_to_type (&fi
, type
, objfile
)
4399 || !read_member_functions (&fi
, pp
, type
, objfile
)
4400 || !attach_fn_fields_to_type (&fi
, type
)
4401 || !read_tilde_fields (&fi
, pp
, type
, objfile
))
4403 type
= error_type (pp
, objfile
);
4406 do_cleanups (back_to
);
4410 /* Read a definition of an array type,
4411 and create and return a suitable type object.
4412 Also creates a range type which represents the bounds of that
4415 static struct type
*
4416 read_array_type (register char **pp
, register struct type
*type
,
4417 struct objfile
*objfile
)
4419 struct type
*index_type
, *element_type
, *range_type
;
4424 /* Format of an array type:
4425 "ar<index type>;lower;upper;<array_contents_type>".
4426 OS9000: "arlower,upper;<array_contents_type>".
4428 Fortran adjustable arrays use Adigits or Tdigits for lower or upper;
4429 for these, produce a type like float[][]. */
4432 index_type
= read_type (pp
, objfile
);
4434 /* Improper format of array type decl. */
4435 return error_type (pp
, objfile
);
4439 if (!(**pp
>= '0' && **pp
<= '9') && **pp
!= '-')
4444 lower
= read_huge_number (pp
, ';', &nbits
);
4447 return error_type (pp
, objfile
);
4449 if (!(**pp
>= '0' && **pp
<= '9') && **pp
!= '-')
4454 upper
= read_huge_number (pp
, ';', &nbits
);
4456 return error_type (pp
, objfile
);
4458 element_type
= read_type (pp
, objfile
);
4467 create_range_type ((struct type
*) NULL
, index_type
, lower
, upper
);
4468 type
= create_array_type (type
, element_type
, range_type
);
4474 /* Read a definition of an enumeration type,
4475 and create and return a suitable type object.
4476 Also defines the symbols that represent the values of the type. */
4478 static struct type
*
4479 read_enum_type (register char **pp
, register struct type
*type
,
4480 struct objfile
*objfile
)
4485 register struct symbol
*sym
;
4487 struct pending
**symlist
;
4488 struct pending
*osyms
, *syms
;
4491 int unsigned_enum
= 1;
4494 /* FIXME! The stabs produced by Sun CC merrily define things that ought
4495 to be file-scope, between N_FN entries, using N_LSYM. What's a mother
4496 to do? For now, force all enum values to file scope. */
4497 if (within_function
)
4498 symlist
= &local_symbols
;
4501 symlist
= &file_symbols
;
4503 o_nsyms
= osyms
? osyms
->nsyms
: 0;
4505 /* The aix4 compiler emits an extra field before the enum members;
4506 my guess is it's a type of some sort. Just ignore it. */
4509 /* Skip over the type. */
4513 /* Skip over the colon. */
4517 /* Read the value-names and their values.
4518 The input syntax is NAME:VALUE,NAME:VALUE, and so on.
4519 A semicolon or comma instead of a NAME means the end. */
4520 while (**pp
&& **pp
!= ';' && **pp
!= ',')
4522 STABS_CONTINUE (pp
, objfile
);
4526 name
= obsavestring (*pp
, p
- *pp
, &objfile
->symbol_obstack
);
4528 n
= read_huge_number (pp
, ',', &nbits
);
4530 return error_type (pp
, objfile
);
4532 sym
= (struct symbol
*)
4533 obstack_alloc (&objfile
->symbol_obstack
, sizeof (struct symbol
));
4534 memset (sym
, 0, sizeof (struct symbol
));
4535 SYMBOL_NAME (sym
) = name
;
4536 SYMBOL_LANGUAGE (sym
) = current_subfile
->language
;
4537 SYMBOL_CLASS (sym
) = LOC_CONST
;
4538 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
4539 SYMBOL_VALUE (sym
) = n
;
4542 add_symbol_to_list (sym
, symlist
);
4547 (*pp
)++; /* Skip the semicolon. */
4549 /* Now fill in the fields of the type-structure. */
4551 TYPE_LENGTH (type
) = TARGET_INT_BIT
/ HOST_CHAR_BIT
;
4552 TYPE_CODE (type
) = TYPE_CODE_ENUM
;
4553 TYPE_FLAGS (type
) &= ~TYPE_FLAG_STUB
;
4555 TYPE_FLAGS (type
) |= TYPE_FLAG_UNSIGNED
;
4556 TYPE_NFIELDS (type
) = nsyms
;
4557 TYPE_FIELDS (type
) = (struct field
*)
4558 TYPE_ALLOC (type
, sizeof (struct field
) * nsyms
);
4559 memset (TYPE_FIELDS (type
), 0, sizeof (struct field
) * nsyms
);
4561 /* Find the symbols for the values and put them into the type.
4562 The symbols can be found in the symlist that we put them on
4563 to cause them to be defined. osyms contains the old value
4564 of that symlist; everything up to there was defined by us. */
4565 /* Note that we preserve the order of the enum constants, so
4566 that in something like "enum {FOO, LAST_THING=FOO}" we print
4567 FOO, not LAST_THING. */
4569 for (syms
= *symlist
, n
= nsyms
- 1; syms
; syms
= syms
->next
)
4571 int last
= syms
== osyms
? o_nsyms
: 0;
4572 int j
= syms
->nsyms
;
4573 for (; --j
>= last
; --n
)
4575 struct symbol
*xsym
= syms
->symbol
[j
];
4576 SYMBOL_TYPE (xsym
) = type
;
4577 TYPE_FIELD_NAME (type
, n
) = SYMBOL_NAME (xsym
);
4578 TYPE_FIELD_BITPOS (type
, n
) = SYMBOL_VALUE (xsym
);
4579 TYPE_FIELD_BITSIZE (type
, n
) = 0;
4588 /* Sun's ACC uses a somewhat saner method for specifying the builtin
4589 typedefs in every file (for int, long, etc):
4591 type = b <signed> <width> <format type>; <offset>; <nbits>
4593 optional format type = c or b for char or boolean.
4594 offset = offset from high order bit to start bit of type.
4595 width is # bytes in object of this type, nbits is # bits in type.
4597 The width/offset stuff appears to be for small objects stored in
4598 larger ones (e.g. `shorts' in `int' registers). We ignore it for now,
4601 static struct type
*
4602 read_sun_builtin_type (char **pp
, int typenums
[2], struct objfile
*objfile
)
4607 enum type_code code
= TYPE_CODE_INT
;
4618 return error_type (pp
, objfile
);
4622 /* For some odd reason, all forms of char put a c here. This is strange
4623 because no other type has this honor. We can safely ignore this because
4624 we actually determine 'char'acterness by the number of bits specified in
4626 Boolean forms, e.g Fortran logical*X, put a b here. */
4630 else if (**pp
== 'b')
4632 code
= TYPE_CODE_BOOL
;
4636 /* The first number appears to be the number of bytes occupied
4637 by this type, except that unsigned short is 4 instead of 2.
4638 Since this information is redundant with the third number,
4639 we will ignore it. */
4640 read_huge_number (pp
, ';', &nbits
);
4642 return error_type (pp
, objfile
);
4644 /* The second number is always 0, so ignore it too. */
4645 read_huge_number (pp
, ';', &nbits
);
4647 return error_type (pp
, objfile
);
4649 /* The third number is the number of bits for this type. */
4650 type_bits
= read_huge_number (pp
, 0, &nbits
);
4652 return error_type (pp
, objfile
);
4653 /* The type *should* end with a semicolon. If it are embedded
4654 in a larger type the semicolon may be the only way to know where
4655 the type ends. If this type is at the end of the stabstring we
4656 can deal with the omitted semicolon (but we don't have to like
4657 it). Don't bother to complain(), Sun's compiler omits the semicolon
4663 return init_type (TYPE_CODE_VOID
, 1,
4664 signed_type
? 0 : TYPE_FLAG_UNSIGNED
, (char *) NULL
,
4667 return init_type (code
,
4668 type_bits
/ TARGET_CHAR_BIT
,
4669 signed_type
? 0 : TYPE_FLAG_UNSIGNED
, (char *) NULL
,
4673 static struct type
*
4674 read_sun_floating_type (char **pp
, int typenums
[2], struct objfile
*objfile
)
4679 struct type
*rettype
;
4681 /* The first number has more details about the type, for example
4683 details
= read_huge_number (pp
, ';', &nbits
);
4685 return error_type (pp
, objfile
);
4687 /* The second number is the number of bytes occupied by this type */
4688 nbytes
= read_huge_number (pp
, ';', &nbits
);
4690 return error_type (pp
, objfile
);
4692 if (details
== NF_COMPLEX
|| details
== NF_COMPLEX16
4693 || details
== NF_COMPLEX32
)
4695 rettype
= init_type (TYPE_CODE_COMPLEX
, nbytes
, 0, NULL
, objfile
);
4696 TYPE_TARGET_TYPE (rettype
)
4697 = init_type (TYPE_CODE_FLT
, nbytes
/ 2, 0, NULL
, objfile
);
4701 return init_type (TYPE_CODE_FLT
, nbytes
, 0, NULL
, objfile
);
4704 /* Read a number from the string pointed to by *PP.
4705 The value of *PP is advanced over the number.
4706 If END is nonzero, the character that ends the
4707 number must match END, or an error happens;
4708 and that character is skipped if it does match.
4709 If END is zero, *PP is left pointing to that character.
4711 If the number fits in a long, set *BITS to 0 and return the value.
4712 If not, set *BITS to be the number of bits in the number and return 0.
4714 If encounter garbage, set *BITS to -1 and return 0. */
4717 read_huge_number (char **pp
, int end
, int *bits
)
4734 /* Leading zero means octal. GCC uses this to output values larger
4735 than an int (because that would be hard in decimal). */
4742 upper_limit
= LONG_MAX
/ radix
;
4744 while ((c
= *p
++) >= '0' && c
< ('0' + radix
))
4746 if (n
<= upper_limit
)
4749 n
+= c
- '0'; /* FIXME this overflows anyway */
4754 /* This depends on large values being output in octal, which is
4761 /* Ignore leading zeroes. */
4765 else if (c
== '2' || c
== '3')
4791 /* Large decimal constants are an error (because it is hard to
4792 count how many bits are in them). */
4798 /* -0x7f is the same as 0x80. So deal with it by adding one to
4799 the number of bits. */
4811 /* It's *BITS which has the interesting information. */
4815 static struct type
*
4816 read_range_type (char **pp
, int typenums
[2], struct objfile
*objfile
)
4818 char *orig_pp
= *pp
;
4823 struct type
*result_type
;
4824 struct type
*index_type
= NULL
;
4826 /* First comes a type we are a subrange of.
4827 In C it is usually 0, 1 or the type being defined. */
4828 if (read_type_number (pp
, rangenums
) != 0)
4829 return error_type (pp
, objfile
);
4830 self_subrange
= (rangenums
[0] == typenums
[0] &&
4831 rangenums
[1] == typenums
[1]);
4836 index_type
= read_type (pp
, objfile
);
4839 /* A semicolon should now follow; skip it. */
4843 /* The remaining two operands are usually lower and upper bounds
4844 of the range. But in some special cases they mean something else. */
4845 n2
= read_huge_number (pp
, ';', &n2bits
);
4846 n3
= read_huge_number (pp
, ';', &n3bits
);
4848 if (n2bits
== -1 || n3bits
== -1)
4849 return error_type (pp
, objfile
);
4852 goto handle_true_range
;
4854 /* If limits are huge, must be large integral type. */
4855 if (n2bits
!= 0 || n3bits
!= 0)
4857 char got_signed
= 0;
4858 char got_unsigned
= 0;
4859 /* Number of bits in the type. */
4862 /* Range from 0 to <large number> is an unsigned large integral type. */
4863 if ((n2bits
== 0 && n2
== 0) && n3bits
!= 0)
4868 /* Range from <large number> to <large number>-1 is a large signed
4869 integral type. Take care of the case where <large number> doesn't
4870 fit in a long but <large number>-1 does. */
4871 else if ((n2bits
!= 0 && n3bits
!= 0 && n2bits
== n3bits
+ 1)
4872 || (n2bits
!= 0 && n3bits
== 0
4873 && (n2bits
== sizeof (long) * HOST_CHAR_BIT
)
4880 if (got_signed
|| got_unsigned
)
4882 return init_type (TYPE_CODE_INT
, nbits
/ TARGET_CHAR_BIT
,
4883 got_unsigned
? TYPE_FLAG_UNSIGNED
: 0, NULL
,
4887 return error_type (pp
, objfile
);
4890 /* A type defined as a subrange of itself, with bounds both 0, is void. */
4891 if (self_subrange
&& n2
== 0 && n3
== 0)
4892 return init_type (TYPE_CODE_VOID
, 1, 0, NULL
, objfile
);
4894 /* If n3 is zero and n2 is positive, we want a floating type, and n2
4895 is the width in bytes.
4897 Fortran programs appear to use this for complex types also. To
4898 distinguish between floats and complex, g77 (and others?) seem
4899 to use self-subranges for the complexes, and subranges of int for
4902 Also note that for complexes, g77 sets n2 to the size of one of
4903 the member floats, not the whole complex beast. My guess is that
4904 this was to work well with pre-COMPLEX versions of gdb. */
4906 if (n3
== 0 && n2
> 0)
4908 struct type
*float_type
4909 = init_type (TYPE_CODE_FLT
, n2
, 0, NULL
, objfile
);
4913 struct type
*complex_type
=
4914 init_type (TYPE_CODE_COMPLEX
, 2 * n2
, 0, NULL
, objfile
);
4915 TYPE_TARGET_TYPE (complex_type
) = float_type
;
4916 return complex_type
;
4922 /* If the upper bound is -1, it must really be an unsigned int. */
4924 else if (n2
== 0 && n3
== -1)
4926 /* It is unsigned int or unsigned long. */
4927 /* GCC 2.3.3 uses this for long long too, but that is just a GDB 3.5
4928 compatibility hack. */
4929 return init_type (TYPE_CODE_INT
, TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
4930 TYPE_FLAG_UNSIGNED
, NULL
, objfile
);
4933 /* Special case: char is defined (Who knows why) as a subrange of
4934 itself with range 0-127. */
4935 else if (self_subrange
&& n2
== 0 && n3
== 127)
4936 return init_type (TYPE_CODE_INT
, 1, TYPE_FLAG_NOSIGN
, NULL
, objfile
);
4938 /* We used to do this only for subrange of self or subrange of int. */
4941 /* -1 is used for the upper bound of (4 byte) "unsigned int" and
4942 "unsigned long", and we already checked for that,
4943 so don't need to test for it here. */
4946 /* n3 actually gives the size. */
4947 return init_type (TYPE_CODE_INT
, -n3
, TYPE_FLAG_UNSIGNED
,
4950 /* Is n3 == 2**(8n)-1 for some integer n? Then it's an
4951 unsigned n-byte integer. But do require n to be a power of
4952 two; we don't want 3- and 5-byte integers flying around. */
4958 for (bytes
= 0; (bits
& 0xff) == 0xff; bytes
++)
4961 && ((bytes
- 1) & bytes
) == 0) /* "bytes is a power of two" */
4962 return init_type (TYPE_CODE_INT
, bytes
, TYPE_FLAG_UNSIGNED
, NULL
,
4966 /* I think this is for Convex "long long". Since I don't know whether
4967 Convex sets self_subrange, I also accept that particular size regardless
4968 of self_subrange. */
4969 else if (n3
== 0 && n2
< 0
4971 || n2
== -TARGET_LONG_LONG_BIT
/ TARGET_CHAR_BIT
))
4972 return init_type (TYPE_CODE_INT
, -n2
, 0, NULL
, objfile
);
4973 else if (n2
== -n3
- 1)
4976 return init_type (TYPE_CODE_INT
, 1, 0, NULL
, objfile
);
4978 return init_type (TYPE_CODE_INT
, 2, 0, NULL
, objfile
);
4979 if (n3
== 0x7fffffff)
4980 return init_type (TYPE_CODE_INT
, 4, 0, NULL
, objfile
);
4983 /* We have a real range type on our hands. Allocate space and
4984 return a real pointer. */
4988 index_type
= builtin_type_int
;
4990 index_type
= *dbx_lookup_type (rangenums
);
4991 if (index_type
== NULL
)
4993 /* Does this actually ever happen? Is that why we are worrying
4994 about dealing with it rather than just calling error_type? */
4996 static struct type
*range_type_index
;
4998 complaint (&symfile_complaints
,
4999 "base type %d of range type is not defined", rangenums
[1]);
5000 if (range_type_index
== NULL
)
5002 init_type (TYPE_CODE_INT
, TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
5003 0, "range type index type", NULL
);
5004 index_type
= range_type_index
;
5007 result_type
= create_range_type ((struct type
*) NULL
, index_type
, n2
, n3
);
5008 return (result_type
);
5011 /* Read in an argument list. This is a list of types, separated by commas
5012 and terminated with END. Return the list of types read in, or (struct type
5013 **)-1 if there is an error. */
5015 static struct field
*
5016 read_args (char **pp
, int end
, struct objfile
*objfile
, int *nargsp
,
5019 /* FIXME! Remove this arbitrary limit! */
5020 struct type
*types
[1024]; /* allow for fns of 1023 parameters */
5027 /* Invalid argument list: no ','. */
5028 return (struct field
*) -1;
5030 STABS_CONTINUE (pp
, objfile
);
5031 types
[n
++] = read_type (pp
, objfile
);
5033 (*pp
)++; /* get past `end' (the ':' character) */
5035 if (TYPE_CODE (types
[n
- 1]) != TYPE_CODE_VOID
)
5043 rval
= (struct field
*) xmalloc (n
* sizeof (struct field
));
5044 memset (rval
, 0, n
* sizeof (struct field
));
5045 for (i
= 0; i
< n
; i
++)
5046 rval
[i
].type
= types
[i
];
5051 /* Common block handling. */
5053 /* List of symbols declared since the last BCOMM. This list is a tail
5054 of local_symbols. When ECOMM is seen, the symbols on the list
5055 are noted so their proper addresses can be filled in later,
5056 using the common block base address gotten from the assembler
5059 static struct pending
*common_block
;
5060 static int common_block_i
;
5062 /* Name of the current common block. We get it from the BCOMM instead of the
5063 ECOMM to match IBM documentation (even though IBM puts the name both places
5064 like everyone else). */
5065 static char *common_block_name
;
5067 /* Process a N_BCOMM symbol. The storage for NAME is not guaranteed
5068 to remain after this function returns. */
5071 common_block_start (char *name
, struct objfile
*objfile
)
5073 if (common_block_name
!= NULL
)
5075 complaint (&symfile_complaints
,
5076 "Invalid symbol data: common block within common block");
5078 common_block
= local_symbols
;
5079 common_block_i
= local_symbols
? local_symbols
->nsyms
: 0;
5080 common_block_name
= obsavestring (name
, strlen (name
),
5081 &objfile
->symbol_obstack
);
5084 /* Process a N_ECOMM symbol. */
5087 common_block_end (struct objfile
*objfile
)
5089 /* Symbols declared since the BCOMM are to have the common block
5090 start address added in when we know it. common_block and
5091 common_block_i point to the first symbol after the BCOMM in
5092 the local_symbols list; copy the list and hang it off the
5093 symbol for the common block name for later fixup. */
5096 struct pending
*new = 0;
5097 struct pending
*next
;
5100 if (common_block_name
== NULL
)
5102 complaint (&symfile_complaints
, "ECOMM symbol unmatched by BCOMM");
5106 sym
= (struct symbol
*)
5107 obstack_alloc (&objfile
->symbol_obstack
, sizeof (struct symbol
));
5108 memset (sym
, 0, sizeof (struct symbol
));
5109 /* Note: common_block_name already saved on symbol_obstack */
5110 SYMBOL_NAME (sym
) = common_block_name
;
5111 SYMBOL_CLASS (sym
) = LOC_BLOCK
;
5113 /* Now we copy all the symbols which have been defined since the BCOMM. */
5115 /* Copy all the struct pendings before common_block. */
5116 for (next
= local_symbols
;
5117 next
!= NULL
&& next
!= common_block
;
5120 for (j
= 0; j
< next
->nsyms
; j
++)
5121 add_symbol_to_list (next
->symbol
[j
], &new);
5124 /* Copy however much of COMMON_BLOCK we need. If COMMON_BLOCK is
5125 NULL, it means copy all the local symbols (which we already did
5128 if (common_block
!= NULL
)
5129 for (j
= common_block_i
; j
< common_block
->nsyms
; j
++)
5130 add_symbol_to_list (common_block
->symbol
[j
], &new);
5132 SYMBOL_TYPE (sym
) = (struct type
*) new;
5134 /* Should we be putting local_symbols back to what it was?
5137 i
= hashname (SYMBOL_NAME (sym
));
5138 SYMBOL_VALUE_CHAIN (sym
) = global_sym_chain
[i
];
5139 global_sym_chain
[i
] = sym
;
5140 common_block_name
= NULL
;
5143 /* Add a common block's start address to the offset of each symbol
5144 declared to be in it (by being between a BCOMM/ECOMM pair that uses
5145 the common block name). */
5148 fix_common_block (struct symbol
*sym
, int valu
)
5150 struct pending
*next
= (struct pending
*) SYMBOL_TYPE (sym
);
5151 for (; next
; next
= next
->next
)
5154 for (j
= next
->nsyms
- 1; j
>= 0; j
--)
5155 SYMBOL_VALUE_ADDRESS (next
->symbol
[j
]) += valu
;
5161 /* What about types defined as forward references inside of a small lexical
5163 /* Add a type to the list of undefined types to be checked through
5164 once this file has been read in. */
5167 add_undefined_type (struct type
*type
)
5169 if (undef_types_length
== undef_types_allocated
)
5171 undef_types_allocated
*= 2;
5172 undef_types
= (struct type
**)
5173 xrealloc ((char *) undef_types
,
5174 undef_types_allocated
* sizeof (struct type
*));
5176 undef_types
[undef_types_length
++] = type
;
5179 /* Go through each undefined type, see if it's still undefined, and fix it
5180 up if possible. We have two kinds of undefined types:
5182 TYPE_CODE_ARRAY: Array whose target type wasn't defined yet.
5183 Fix: update array length using the element bounds
5184 and the target type's length.
5185 TYPE_CODE_STRUCT, TYPE_CODE_UNION: Structure whose fields were not
5186 yet defined at the time a pointer to it was made.
5187 Fix: Do a full lookup on the struct/union tag. */
5189 cleanup_undefined_types (void)
5193 for (type
= undef_types
; type
< undef_types
+ undef_types_length
; type
++)
5195 switch (TYPE_CODE (*type
))
5198 case TYPE_CODE_STRUCT
:
5199 case TYPE_CODE_UNION
:
5200 case TYPE_CODE_ENUM
:
5202 /* Check if it has been defined since. Need to do this here
5203 as well as in check_typedef to deal with the (legitimate in
5204 C though not C++) case of several types with the same name
5205 in different source files. */
5206 if (TYPE_STUB (*type
))
5208 struct pending
*ppt
;
5210 /* Name of the type, without "struct" or "union" */
5211 char *typename
= TYPE_TAG_NAME (*type
);
5213 if (typename
== NULL
)
5215 complaint (&symfile_complaints
, "need a type name");
5218 for (ppt
= file_symbols
; ppt
; ppt
= ppt
->next
)
5220 for (i
= 0; i
< ppt
->nsyms
; i
++)
5222 struct symbol
*sym
= ppt
->symbol
[i
];
5224 if (SYMBOL_CLASS (sym
) == LOC_TYPEDEF
5225 && SYMBOL_NAMESPACE (sym
) == STRUCT_NAMESPACE
5226 && (TYPE_CODE (SYMBOL_TYPE (sym
)) ==
5228 && STREQ (SYMBOL_NAME (sym
), typename
))
5229 replace_type (*type
, SYMBOL_TYPE (sym
));
5238 complaint (&symfile_complaints
,
5239 "GDB internal error. cleanup_undefined_types with bad type %d.",
5246 undef_types_length
= 0;
5249 /* Scan through all of the global symbols defined in the object file,
5250 assigning values to the debugging symbols that need to be assigned
5251 to. Get these symbols from the minimal symbol table. */
5254 scan_file_globals (struct objfile
*objfile
)
5257 struct minimal_symbol
*msymbol
;
5258 struct symbol
*sym
, *prev
, *rsym
;
5259 struct objfile
*resolve_objfile
;
5261 /* SVR4 based linkers copy referenced global symbols from shared
5262 libraries to the main executable.
5263 If we are scanning the symbols for a shared library, try to resolve
5264 them from the minimal symbols of the main executable first. */
5266 if (symfile_objfile
&& objfile
!= symfile_objfile
)
5267 resolve_objfile
= symfile_objfile
;
5269 resolve_objfile
= objfile
;
5273 /* Avoid expensive loop through all minimal symbols if there are
5274 no unresolved symbols. */
5275 for (hash
= 0; hash
< HASHSIZE
; hash
++)
5277 if (global_sym_chain
[hash
])
5280 if (hash
>= HASHSIZE
)
5283 for (msymbol
= resolve_objfile
->msymbols
;
5284 msymbol
&& SYMBOL_NAME (msymbol
) != NULL
;
5289 /* Skip static symbols. */
5290 switch (MSYMBOL_TYPE (msymbol
))
5302 /* Get the hash index and check all the symbols
5303 under that hash index. */
5305 hash
= hashname (SYMBOL_NAME (msymbol
));
5307 for (sym
= global_sym_chain
[hash
]; sym
;)
5309 if (SYMBOL_NAME (msymbol
)[0] == SYMBOL_NAME (sym
)[0] &&
5310 STREQ (SYMBOL_NAME (msymbol
) + 1, SYMBOL_NAME (sym
) + 1))
5313 struct alias_list
*aliases
;
5315 /* Splice this symbol out of the hash chain and
5316 assign the value we have to it. */
5319 SYMBOL_VALUE_CHAIN (prev
) = SYMBOL_VALUE_CHAIN (sym
);
5323 global_sym_chain
[hash
] = SYMBOL_VALUE_CHAIN (sym
);
5326 /* Check to see whether we need to fix up a common block. */
5327 /* Note: this code might be executed several times for
5328 the same symbol if there are multiple references. */
5330 /* If symbol has aliases, do minimal symbol fixups for each.
5331 These live aliases/references weren't added to
5332 global_sym_chain hash but may also need to be fixed up. */
5333 /* FIXME: Maybe should have added aliases to the global chain, resolved symbol name, then treated aliases as normal
5334 symbols? Still, we wouldn't want to add_to_list. */
5335 /* Now do the same for each alias of this symbol */
5337 aliases
= SYMBOL_ALIASES (sym
);
5340 if (SYMBOL_CLASS (rsym
) == LOC_BLOCK
)
5342 fix_common_block (rsym
,
5343 SYMBOL_VALUE_ADDRESS (msymbol
));
5347 SYMBOL_VALUE_ADDRESS (rsym
)
5348 = SYMBOL_VALUE_ADDRESS (msymbol
);
5350 SYMBOL_SECTION (rsym
) = SYMBOL_SECTION (msymbol
);
5353 rsym
= aliases
->sym
;
5354 aliases
= aliases
->next
;
5363 sym
= SYMBOL_VALUE_CHAIN (prev
);
5367 sym
= global_sym_chain
[hash
];
5373 sym
= SYMBOL_VALUE_CHAIN (sym
);
5377 if (resolve_objfile
== objfile
)
5379 resolve_objfile
= objfile
;
5382 /* Change the storage class of any remaining unresolved globals to
5383 LOC_UNRESOLVED and remove them from the chain. */
5384 for (hash
= 0; hash
< HASHSIZE
; hash
++)
5386 sym
= global_sym_chain
[hash
];
5390 sym
= SYMBOL_VALUE_CHAIN (sym
);
5392 /* Change the symbol address from the misleading chain value
5394 SYMBOL_VALUE_ADDRESS (prev
) = 0;
5396 /* Complain about unresolved common block symbols. */
5397 if (SYMBOL_CLASS (prev
) == LOC_STATIC
)
5398 SYMBOL_CLASS (prev
) = LOC_UNRESOLVED
;
5400 complaint (&symfile_complaints
,
5401 "%s: common block `%s' from global_sym_chain unresolved",
5402 objfile
->name
, SYMBOL_NAME (prev
));
5405 memset (global_sym_chain
, 0, sizeof (global_sym_chain
));
5408 /* Initialize anything that needs initializing when starting to read
5409 a fresh piece of a symbol file, e.g. reading in the stuff corresponding
5413 stabsread_init (void)
5417 /* Initialize anything that needs initializing when a completely new
5418 symbol file is specified (not just adding some symbols from another
5419 file, e.g. a shared library). */
5422 stabsread_new_init (void)
5424 /* Empty the hash table of global syms looking for values. */
5425 memset (global_sym_chain
, 0, sizeof (global_sym_chain
));
5428 /* Initialize anything that needs initializing at the same time as
5429 start_symtab() is called. */
5434 global_stabs
= NULL
; /* AIX COFF */
5435 /* Leave FILENUM of 0 free for builtin types and this file's types. */
5436 n_this_object_header_files
= 1;
5437 type_vector_length
= 0;
5438 type_vector
= (struct type
**) 0;
5440 /* FIXME: If common_block_name is not already NULL, we should complain(). */
5441 common_block_name
= NULL
;
5444 /* Call after end_symtab() */
5451 xfree (type_vector
);
5454 type_vector_length
= 0;
5455 previous_stab_code
= 0;
5459 finish_global_stabs (struct objfile
*objfile
)
5463 patch_block_stabs (global_symbols
, global_stabs
, objfile
);
5464 xfree (global_stabs
);
5465 global_stabs
= NULL
;
5469 /* Find the end of the name, delimited by a ':', but don't match
5470 ObjC symbols which look like -[Foo bar::]:bla. */
5472 find_name_end (char *name
)
5475 if (s
[0] == '-' || *s
== '+')
5477 /* Must be an ObjC method symbol. */
5480 error ("invalid symbol name \"%s\"", name
);
5482 s
= strchr (s
, ']');
5485 error ("invalid symbol name \"%s\"", name
);
5487 return strchr (s
, ':');
5491 return strchr (s
, ':');
5495 /* Initializer for this module */
5498 _initialize_stabsread (void)
5500 undef_types_allocated
= 20;
5501 undef_types_length
= 0;
5502 undef_types
= (struct type
**)
5503 xmalloc (undef_types_allocated
* sizeof (struct type
*));