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
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"
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"
50 /* Ask stabsread.h to define the vars it normally declares `extern'. */
53 #include "stabsread.h" /* Our own declarations */
56 extern void _initialize_stabsread (void);
58 /* The routines that read and process a complete stabs for a C struct or
59 C++ class pass lists of data member fields and lists of member function
60 fields in an instance of a field_info structure, as defined below.
61 This is part of some reorganization of low level C++ support and is
62 expected to eventually go away... (FIXME) */
68 struct nextfield
*next
;
70 /* This is the raw visibility from the stab. It is not checked
71 for being one of the visibilities we recognize, so code which
72 examines this field better be able to deal. */
78 struct next_fnfieldlist
80 struct next_fnfieldlist
*next
;
81 struct fn_fieldlist fn_fieldlist
;
87 read_one_struct_field (struct field_info
*, char **, char *,
88 struct type
*, struct objfile
*);
90 static char *get_substring (char **, int);
92 static struct type
*dbx_alloc_type (int[2], struct objfile
*);
94 static long read_huge_number (char **, int, int *);
96 static struct type
*error_type (char **, struct objfile
*);
99 patch_block_stabs (struct pending
*, struct pending_stabs
*,
102 static void fix_common_block (struct symbol
*, int);
104 static int read_type_number (char **, int *);
106 static struct type
*read_range_type (char **, int[2], struct objfile
*);
108 static struct type
*read_sun_builtin_type (char **, int[2], struct objfile
*);
110 static struct type
*read_sun_floating_type (char **, int[2],
113 static struct type
*read_enum_type (char **, struct type
*, struct objfile
*);
115 static struct type
*rs6000_builtin_type (int);
118 read_member_functions (struct field_info
*, char **, struct type
*,
122 read_struct_fields (struct field_info
*, char **, struct type
*,
126 read_baseclasses (struct field_info
*, char **, struct type
*,
130 read_tilde_fields (struct field_info
*, char **, struct type
*,
133 static int attach_fn_fields_to_type (struct field_info
*, struct type
*);
136 attach_fields_to_type (struct field_info
*, struct type
*, struct objfile
*);
138 static struct type
*read_struct_type (char **, struct type
*,
141 static struct type
*read_array_type (char **, struct type
*,
144 static struct type
**read_args (char **, int, struct objfile
*);
147 read_cpp_abbrev (struct field_info
*, char **, struct type
*,
150 /* new functions added for cfront support */
153 copy_cfront_struct_fields (struct field_info
*, struct type
*,
156 static char *get_cfront_method_physname (char *);
159 read_cfront_baseclasses (struct field_info
*, char **,
160 struct type
*, struct objfile
*);
163 read_cfront_static_fields (struct field_info
*, char **,
164 struct type
*, struct objfile
*);
166 read_cfront_member_functions (struct field_info
*, char **,
167 struct type
*, struct objfile
*);
169 /* end new functions added for cfront support */
172 add_live_range (struct objfile
*, struct symbol
*, CORE_ADDR
, CORE_ADDR
);
174 static int resolve_live_range (struct objfile
*, struct symbol
*, char *);
176 static int process_reference (char **string
);
178 static CORE_ADDR
ref_search_value (int refnum
);
181 resolve_symbol_reference (struct objfile
*, struct symbol
*, char *);
183 void stabsread_clear_cache (void);
185 static const char vptr_name
[] =
186 {'_', 'v', 'p', 't', 'r', CPLUS_MARKER
, '\0'};
187 static const char vb_name
[] =
188 {'_', 'v', 'b', CPLUS_MARKER
, '\0'};
190 /* Define this as 1 if a pcc declaration of a char or short argument
191 gives the correct address. Otherwise assume pcc gives the
192 address of the corresponding int, which is not the same on a
193 big-endian machine. */
195 #if !defined (BELIEVE_PCC_PROMOTION)
196 #define BELIEVE_PCC_PROMOTION 0
198 #if !defined (BELIEVE_PCC_PROMOTION_TYPE)
199 #define BELIEVE_PCC_PROMOTION_TYPE 0
202 static struct complaint invalid_cpp_abbrev_complaint
=
203 {"invalid C++ abbreviation `%s'", 0, 0};
205 static struct complaint invalid_cpp_type_complaint
=
206 {"C++ abbreviated type name unknown at symtab pos %d", 0, 0};
208 static struct complaint member_fn_complaint
=
209 {"member function type missing, got '%c'", 0, 0};
211 static struct complaint const_vol_complaint
=
212 {"const/volatile indicator missing, got '%c'", 0, 0};
214 static struct complaint error_type_complaint
=
215 {"couldn't parse type; debugger out of date?", 0, 0};
217 static struct complaint invalid_member_complaint
=
218 {"invalid (minimal) member type data format at symtab pos %d.", 0, 0};
220 static struct complaint range_type_base_complaint
=
221 {"base type %d of range type is not defined", 0, 0};
223 static struct complaint reg_value_complaint
=
224 {"register number %d too large (max %d) in symbol %s", 0, 0};
226 static struct complaint vtbl_notfound_complaint
=
227 {"virtual function table pointer not found when defining class `%s'", 0, 0};
229 static struct complaint unrecognized_cplus_name_complaint
=
230 {"Unknown C++ symbol name `%s'", 0, 0};
232 static struct complaint rs6000_builtin_complaint
=
233 {"Unknown builtin type %d", 0, 0};
235 static struct complaint unresolved_sym_chain_complaint
=
236 {"%s: common block `%s' from global_sym_chain unresolved", 0, 0};
238 static struct complaint stabs_general_complaint
=
241 static struct complaint lrs_general_complaint
=
244 /* Make a list of forward references which haven't been defined. */
246 static struct type
**undef_types
;
247 static int undef_types_allocated
;
248 static int undef_types_length
;
249 static struct symbol
*current_symbol
= NULL
;
251 /* Check for and handle cretinous stabs symbol name continuation! */
252 #define STABS_CONTINUE(pp,objfile) \
254 if (**(pp) == '\\' || (**(pp) == '?' && (*(pp))[1] == '\0')) \
255 *(pp) = next_symbol_text (objfile); \
258 /* FIXME: These probably should be our own types (like rs6000_builtin_type
259 has its own types) rather than builtin_type_*. */
260 static struct type
**os9k_type_vector
[] =
267 &builtin_type_unsigned_char
,
268 &builtin_type_unsigned_short
,
269 &builtin_type_unsigned_long
,
270 &builtin_type_unsigned_int
,
272 &builtin_type_double
,
274 &builtin_type_long_double
277 static void os9k_init_type_vector (struct type
**);
280 os9k_init_type_vector (struct type
**tv
)
283 for (i
= 0; i
< sizeof (os9k_type_vector
) / sizeof (struct type
**); i
++)
284 tv
[i
] = (os9k_type_vector
[i
] == 0 ? 0 : *(os9k_type_vector
[i
]));
287 /* Look up a dbx type-number pair. Return the address of the slot
288 where the type for that number-pair is stored.
289 The number-pair is in TYPENUMS.
291 This can be used for finding the type associated with that pair
292 or for associating a new type with the pair. */
295 dbx_lookup_type (int typenums
[2])
297 register int filenum
= typenums
[0];
298 register int index
= typenums
[1];
300 register int real_filenum
;
301 register struct header_file
*f
;
304 if (filenum
== -1) /* -1,-1 is for temporary types. */
307 if (filenum
< 0 || filenum
>= n_this_object_header_files
)
309 static struct complaint msg
=
311 Invalid symbol data: type number (%d,%d) out of range at symtab pos %d.",
313 complain (&msg
, filenum
, index
, symnum
);
321 /* Caller wants address of address of type. We think
322 that negative (rs6k builtin) types will never appear as
323 "lvalues", (nor should they), so we stuff the real type
324 pointer into a temp, and return its address. If referenced,
325 this will do the right thing. */
326 static struct type
*temp_type
;
328 temp_type
= rs6000_builtin_type (index
);
332 /* Type is defined outside of header files.
333 Find it in this object file's type vector. */
334 if (index
>= type_vector_length
)
336 old_len
= type_vector_length
;
339 type_vector_length
= INITIAL_TYPE_VECTOR_LENGTH
;
340 type_vector
= (struct type
**)
341 xmalloc (type_vector_length
* sizeof (struct type
*));
343 while (index
>= type_vector_length
)
345 type_vector_length
*= 2;
347 type_vector
= (struct type
**)
348 xrealloc ((char *) type_vector
,
349 (type_vector_length
* sizeof (struct type
*)));
350 memset (&type_vector
[old_len
], 0,
351 (type_vector_length
- old_len
) * sizeof (struct type
*));
354 /* Deal with OS9000 fundamental types. */
355 os9k_init_type_vector (type_vector
);
357 return (&type_vector
[index
]);
361 real_filenum
= this_object_header_files
[filenum
];
363 if (real_filenum
>= N_HEADER_FILES (current_objfile
))
365 struct type
*temp_type
;
366 struct type
**temp_type_p
;
368 warning ("GDB internal error: bad real_filenum");
371 temp_type
= init_type (TYPE_CODE_ERROR
, 0, 0, NULL
, NULL
);
372 temp_type_p
= (struct type
**) xmalloc (sizeof (struct type
*));
373 *temp_type_p
= temp_type
;
377 f
= HEADER_FILES (current_objfile
) + real_filenum
;
379 f_orig_length
= f
->length
;
380 if (index
>= f_orig_length
)
382 while (index
>= f
->length
)
386 f
->vector
= (struct type
**)
387 xrealloc ((char *) f
->vector
, f
->length
* sizeof (struct type
*));
388 memset (&f
->vector
[f_orig_length
], 0,
389 (f
->length
- f_orig_length
) * sizeof (struct type
*));
391 return (&f
->vector
[index
]);
395 /* Make sure there is a type allocated for type numbers TYPENUMS
396 and return the type object.
397 This can create an empty (zeroed) type object.
398 TYPENUMS may be (-1, -1) to return a new type object that is not
399 put into the type vector, and so may not be referred to by number. */
402 dbx_alloc_type (int typenums
[2], struct objfile
*objfile
)
404 register struct type
**type_addr
;
406 if (typenums
[0] == -1)
408 return (alloc_type (objfile
));
411 type_addr
= dbx_lookup_type (typenums
);
413 /* If we are referring to a type not known at all yet,
414 allocate an empty type for it.
415 We will fill it in later if we find out how. */
418 *type_addr
= alloc_type (objfile
);
424 /* for all the stabs in a given stab vector, build appropriate types
425 and fix their symbols in given symbol vector. */
428 patch_block_stabs (struct pending
*symbols
, struct pending_stabs
*stabs
,
429 struct objfile
*objfile
)
439 /* for all the stab entries, find their corresponding symbols and
440 patch their types! */
442 for (ii
= 0; ii
< stabs
->count
; ++ii
)
444 name
= stabs
->stab
[ii
];
445 pp
= (char *) strchr (name
, ':');
449 pp
= (char *) strchr (pp
, ':');
451 sym
= find_symbol_in_list (symbols
, name
, pp
- name
);
454 /* FIXME-maybe: it would be nice if we noticed whether
455 the variable was defined *anywhere*, not just whether
456 it is defined in this compilation unit. But neither
457 xlc or GCC seem to need such a definition, and until
458 we do psymtabs (so that the minimal symbols from all
459 compilation units are available now), I'm not sure
460 how to get the information. */
462 /* On xcoff, if a global is defined and never referenced,
463 ld will remove it from the executable. There is then
464 a N_GSYM stab for it, but no regular (C_EXT) symbol. */
465 sym
= (struct symbol
*)
466 obstack_alloc (&objfile
->symbol_obstack
,
467 sizeof (struct symbol
));
469 memset (sym
, 0, sizeof (struct symbol
));
470 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
471 SYMBOL_CLASS (sym
) = LOC_OPTIMIZED_OUT
;
473 obsavestring (name
, pp
- name
, &objfile
->symbol_obstack
);
475 if (*(pp
- 1) == 'F' || *(pp
- 1) == 'f')
477 /* I don't think the linker does this with functions,
478 so as far as I know this is never executed.
479 But it doesn't hurt to check. */
481 lookup_function_type (read_type (&pp
, objfile
));
485 SYMBOL_TYPE (sym
) = read_type (&pp
, objfile
);
487 add_symbol_to_list (sym
, &global_symbols
);
492 if (*(pp
- 1) == 'F' || *(pp
- 1) == 'f')
495 lookup_function_type (read_type (&pp
, objfile
));
499 SYMBOL_TYPE (sym
) = read_type (&pp
, objfile
);
507 /* Read a number by which a type is referred to in dbx data,
508 or perhaps read a pair (FILENUM, TYPENUM) in parentheses.
509 Just a single number N is equivalent to (0,N).
510 Return the two numbers by storing them in the vector TYPENUMS.
511 TYPENUMS will then be used as an argument to dbx_lookup_type.
513 Returns 0 for success, -1 for error. */
516 read_type_number (register char **pp
, register int *typenums
)
522 typenums
[0] = read_huge_number (pp
, ',', &nbits
);
525 typenums
[1] = read_huge_number (pp
, ')', &nbits
);
532 typenums
[1] = read_huge_number (pp
, 0, &nbits
);
540 #define VISIBILITY_PRIVATE '0' /* Stabs character for private field */
541 #define VISIBILITY_PROTECTED '1' /* Stabs character for protected fld */
542 #define VISIBILITY_PUBLIC '2' /* Stabs character for public field */
543 #define VISIBILITY_IGNORE '9' /* Optimized out or zero length */
545 #define CFRONT_VISIBILITY_PRIVATE '2' /* Stabs character for private field */
546 #define CFRONT_VISIBILITY_PUBLIC '1' /* Stabs character for public field */
548 /* This code added to support parsing of ARM/Cfront stabs strings */
550 /* Get substring from string up to char c, advance string pointer past
554 get_substring (char **p
, int c
)
569 /* Physname gets strcat'd onto sname in order to recreate the mangled
570 name (see funtion gdb_mangle_name in gdbtypes.c). For cfront, make
571 the physname look like that of g++ - take out the initial mangling
572 eg: for sname="a" and fname="foo__1aFPFs_i" return "FPFs_i" */
575 get_cfront_method_physname (char *fname
)
578 /* FIXME would like to make this generic for g++ too, but
579 that is already handled in read_member_funcctions */
582 /* search ahead to find the start of the mangled suffix */
583 if (*p
== '_' && *(p
+ 1) == '_') /* compiler generated; probably a ctor/dtor */
585 while (p
&& (unsigned) ((p
+ 1) - fname
) < strlen (fname
) && *(p
+ 1) != '_')
587 if (!(p
&& *p
== '_' && *(p
+ 1) == '_'))
588 error ("Invalid mangled function name %s", fname
);
589 p
+= 2; /* advance past '__' */
591 /* struct name length and name of type should come next; advance past it */
594 len
= len
* 10 + (*p
- '0');
602 /* Read base classes within cfront class definition.
603 eg: A:ZcA;1@Bpub v2@Bvirpri;__ct__1AFv func__1AFv *sfunc__1AFv ;as__1A ;;
606 A:ZcA;;foopri__1AFv foopro__1AFv __ct__1AFv __ct__1AFRC1A foopub__1AFv ;;;
611 read_cfront_baseclasses (struct field_info
*fip
, char **pp
, struct type
*type
,
612 struct objfile
*objfile
)
614 static struct complaint msg_unknown
=
616 Unsupported token in stabs string %s.\n",
618 static struct complaint msg_notfound
=
620 Unable to find base type for %s.\n",
625 struct nextfield
*new;
627 if (**pp
== ';') /* no base classes; return */
633 /* first count base classes so we can allocate space before parsing */
634 for (p
= *pp
; p
&& *p
&& *p
!= ';'; p
++)
639 bnum
++; /* add one more for last one */
641 /* now parse the base classes until we get to the start of the methods
642 (code extracted and munged from read_baseclasses) */
643 ALLOCATE_CPLUS_STRUCT_TYPE (type
);
644 TYPE_N_BASECLASSES (type
) = bnum
;
648 int num_bytes
= B_BYTES (TYPE_N_BASECLASSES (type
));
651 pointer
= (char *) TYPE_ALLOC (type
, num_bytes
);
652 TYPE_FIELD_VIRTUAL_BITS (type
) = (B_TYPE
*) pointer
;
654 B_CLRALL (TYPE_FIELD_VIRTUAL_BITS (type
), TYPE_N_BASECLASSES (type
));
656 for (i
= 0; i
< TYPE_N_BASECLASSES (type
); i
++)
658 new = (struct nextfield
*) xmalloc (sizeof (struct nextfield
));
659 make_cleanup (xfree
, new);
660 memset (new, 0, sizeof (struct nextfield
));
661 new->next
= fip
->list
;
663 FIELD_BITSIZE (new->field
) = 0; /* this should be an unpacked field! */
665 STABS_CONTINUE (pp
, objfile
);
667 /* virtual? eg: v2@Bvir */
670 SET_TYPE_FIELD_VIRTUAL (type
, i
);
674 /* access? eg: 2@Bvir */
675 /* Note: protected inheritance not supported in cfront */
678 case CFRONT_VISIBILITY_PRIVATE
:
679 new->visibility
= VISIBILITY_PRIVATE
;
681 case CFRONT_VISIBILITY_PUBLIC
:
682 new->visibility
= VISIBILITY_PUBLIC
;
685 /* Bad visibility format. Complain and treat it as
688 static struct complaint msg
=
690 "Unknown visibility `%c' for baseclass", 0, 0};
691 complain (&msg
, new->visibility
);
692 new->visibility
= VISIBILITY_PUBLIC
;
696 /* "@" comes next - eg: @Bvir */
699 complain (&msg_unknown
, *pp
);
705 /* Set the bit offset of the portion of the object corresponding
706 to this baseclass. Always zero in the absence of
707 multiple inheritance. */
708 /* Unable to read bit position from stabs;
709 Assuming no multiple inheritance for now FIXME! */
710 /* We may have read this in the structure definition;
711 now we should fixup the members to be the actual base classes */
712 FIELD_BITPOS (new->field
) = 0;
714 /* Get the base class name and type */
716 char *bname
; /* base class name */
717 struct symbol
*bsym
; /* base class */
719 p1
= strchr (*pp
, ' ');
720 p2
= strchr (*pp
, ';');
722 bname
= get_substring (pp
, ' ');
724 bname
= get_substring (pp
, ';');
725 if (!bname
|| !*bname
)
727 complain (&msg_unknown
, *pp
);
730 /* FIXME! attach base info to type */
731 bsym
= lookup_symbol (bname
, 0, STRUCT_NAMESPACE
, 0, 0); /*demangled_name */
734 new->field
.type
= SYMBOL_TYPE (bsym
);
735 new->field
.name
= type_name_no_tag (new->field
.type
);
739 complain (&msg_notfound
, *pp
);
744 /* If more base classes to parse, loop again.
745 We ate the last ' ' or ';' in get_substring,
746 so on exit we will have skipped the trailing ';' */
747 /* if invalid, return 0; add code to detect - FIXME! */
752 /* read cfront member functions.
753 pp points to string starting with list of functions
754 eg: A:ZcA;1@Bpub v2@Bvirpri;__ct__1AFv func__1AFv *sfunc__1AFv ;as__1A ;;
755 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
756 A:ZcA;;foopri__1AFv foopro__1AFv __ct__1AFv __ct__1AFRC1A foopub__1AFv ;;;
757 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
761 read_cfront_member_functions (struct field_info
*fip
, char **pp
,
762 struct type
*type
, struct objfile
*objfile
)
764 /* This code extracted from read_member_functions
765 so as to do the similar thing for our funcs */
769 /* Total number of member functions defined in this class. If the class
770 defines two `f' functions, and one `g' function, then this will have
772 int total_length
= 0;
776 struct next_fnfield
*next
;
777 struct fn_field fn_field
;
780 struct type
*look_ahead_type
;
781 struct next_fnfieldlist
*new_fnlist
;
782 struct next_fnfield
*new_sublist
;
785 struct symbol
*ref_func
= 0;
787 /* Process each list until we find the end of the member functions.
788 eg: p = "__ct__1AFv foo__1AFv ;;;" */
790 STABS_CONTINUE (pp
, objfile
); /* handle \\ */
792 while (**pp
!= ';' && (fname
= get_substring (pp
, ' '), fname
))
795 int sublist_count
= 0;
797 if (fname
[0] == '*') /* static member */
803 ref_func
= lookup_symbol (fname
, 0, VAR_NAMESPACE
, 0, 0); /* demangled name */
806 static struct complaint msg
=
808 Unable to find function symbol for %s\n",
810 complain (&msg
, fname
);
814 look_ahead_type
= NULL
;
817 new_fnlist
= (struct next_fnfieldlist
*)
818 xmalloc (sizeof (struct next_fnfieldlist
));
819 make_cleanup (xfree
, new_fnlist
);
820 memset (new_fnlist
, 0, sizeof (struct next_fnfieldlist
));
822 /* The following is code to work around cfront generated stabs.
823 The stabs contains full mangled name for each field.
824 We try to demangle the name and extract the field name out of it. */
826 char *dem
, *dem_p
, *dem_args
;
828 dem
= cplus_demangle (fname
, DMGL_ANSI
| DMGL_PARAMS
);
831 dem_p
= strrchr (dem
, ':');
832 if (dem_p
!= 0 && *(dem_p
- 1) == ':')
834 /* get rid of args */
835 dem_args
= strchr (dem_p
, '(');
836 if (dem_args
== NULL
)
837 dem_len
= strlen (dem_p
);
839 dem_len
= dem_args
- dem_p
;
841 obsavestring (dem_p
, dem_len
, &objfile
->type_obstack
);
846 obsavestring (fname
, strlen (fname
), &objfile
->type_obstack
);
848 } /* end of code for cfront work around */
850 new_fnlist
->fn_fieldlist
.name
= main_fn_name
;
852 /*-------------------------------------------------*/
853 /* Set up the sublists
854 Sublists are stuff like args, static, visibility, etc.
855 so in ARM, we have to set that info some other way.
856 Multiple sublists happen if overloading
857 eg: foo::26=##1;:;2A.;
858 In g++, we'd loop here thru all the sublists... */
861 (struct next_fnfield
*) xmalloc (sizeof (struct next_fnfield
));
862 make_cleanup (xfree
, new_sublist
);
863 memset (new_sublist
, 0, sizeof (struct next_fnfield
));
865 /* eat 1; from :;2A.; */
866 new_sublist
->fn_field
.type
= SYMBOL_TYPE (ref_func
); /* normally takes a read_type */
867 /* Make this type look like a method stub for gdb */
868 TYPE_FLAGS (new_sublist
->fn_field
.type
) |= TYPE_FLAG_STUB
;
869 TYPE_CODE (new_sublist
->fn_field
.type
) = TYPE_CODE_METHOD
;
871 /* If this is just a stub, then we don't have the real name here. */
872 if (TYPE_STUB (new_sublist
->fn_field
.type
))
874 if (!TYPE_DOMAIN_TYPE (new_sublist
->fn_field
.type
))
875 TYPE_DOMAIN_TYPE (new_sublist
->fn_field
.type
) = type
;
876 new_sublist
->fn_field
.is_stub
= 1;
879 /* physname used later in mangling; eg PFs_i,5 for foo__1aFPFs_i
880 physname gets strcat'd in order to recreate the onto mangled name */
881 pname
= get_cfront_method_physname (fname
);
882 new_sublist
->fn_field
.physname
= savestring (pname
, strlen (pname
));
885 /* Set this member function's visibility fields.
886 Unable to distinguish access from stabs definition!
887 Assuming public for now. FIXME!
888 (for private, set new_sublist->fn_field.is_private = 1,
889 for public, set new_sublist->fn_field.is_protected = 1) */
891 /* Unable to distinguish const/volatile from stabs definition!
892 Assuming normal for now. FIXME! */
894 new_sublist
->fn_field
.is_const
= 0;
895 new_sublist
->fn_field
.is_volatile
= 0; /* volatile not implemented in cfront */
897 /* Set virtual/static function info
898 How to get vtable offsets ?
899 Assuming normal for now FIXME!!
900 For vtables, figure out from whence this virtual function came.
901 It may belong to virtual function table of
902 one of its baseclasses.
904 new_sublist -> fn_field.voffset = vtable offset,
905 new_sublist -> fn_field.fcontext = look_ahead_type;
906 where look_ahead_type is type of baseclass */
908 new_sublist
->fn_field
.voffset
= VOFFSET_STATIC
;
909 else /* normal member function. */
910 new_sublist
->fn_field
.voffset
= 0;
911 new_sublist
->fn_field
.fcontext
= 0;
914 /* Prepare new sublist */
915 new_sublist
->next
= sublist
;
916 sublist
= new_sublist
;
919 /* In g++, we loop thu sublists - now we set from functions. */
920 new_fnlist
->fn_fieldlist
.fn_fields
= (struct fn_field
*)
921 obstack_alloc (&objfile
->type_obstack
,
922 sizeof (struct fn_field
) * length
);
923 memset (new_fnlist
->fn_fieldlist
.fn_fields
, 0,
924 sizeof (struct fn_field
) * length
);
925 for (i
= length
; (i
--, sublist
); sublist
= sublist
->next
)
927 new_fnlist
->fn_fieldlist
.fn_fields
[i
] = sublist
->fn_field
;
930 new_fnlist
->fn_fieldlist
.length
= length
;
931 new_fnlist
->next
= fip
->fnlist
;
932 fip
->fnlist
= new_fnlist
;
934 total_length
+= length
;
935 STABS_CONTINUE (pp
, objfile
); /* handle \\ */
940 /* type should already have space */
941 TYPE_FN_FIELDLISTS (type
) = (struct fn_fieldlist
*)
942 TYPE_ALLOC (type
, sizeof (struct fn_fieldlist
) * nfn_fields
);
943 memset (TYPE_FN_FIELDLISTS (type
), 0,
944 sizeof (struct fn_fieldlist
) * nfn_fields
);
945 TYPE_NFN_FIELDS (type
) = nfn_fields
;
946 TYPE_NFN_FIELDS_TOTAL (type
) = total_length
;
949 /* end of scope for reading member func */
953 /* Skip trailing ';' and bump count of number of fields seen */
961 /* This routine fixes up partial cfront types that were created
962 while parsing the stabs. The main need for this function is
963 to add information such as methods to classes.
964 Examples of "p": "sA;;__ct__1AFv foo__1AFv ;;;" */
966 resolve_cfront_continuation (struct objfile
*objfile
, struct symbol
*sym
,
969 struct symbol
*ref_sym
= 0;
971 /* snarfed from read_struct_type */
972 struct field_info fi
;
974 struct cleanup
*back_to
;
976 /* Need to make sure that fi isn't gunna conflict with struct
977 in case struct already had some fnfs */
980 back_to
= make_cleanup (null_cleanup
, 0);
982 /* We only accept structs, classes and unions at the moment.
983 Other continuation types include t (typedef), r (long dbl), ...
984 We may want to add support for them as well;
985 right now they are handled by duplicating the symbol information
986 into the type information (see define_symbol) */
987 if (*p
!= 's' /* structs */
988 && *p
!= 'c' /* class */
989 && *p
!= 'u') /* union */
990 return 0; /* only handle C++ types */
993 /* Get symbol typs name and validate
994 eg: p = "A;;__ct__1AFv foo__1AFv ;;;" */
995 sname
= get_substring (&p
, ';');
996 if (!sname
|| strcmp (sname
, SYMBOL_NAME (sym
)))
997 error ("Internal error: base symbol type name does not match\n");
999 /* Find symbol's internal gdb reference using demangled_name.
1000 This is the real sym that we want;
1001 sym was a temp hack to make debugger happy */
1002 ref_sym
= lookup_symbol (SYMBOL_NAME (sym
), 0, STRUCT_NAMESPACE
, 0, 0);
1003 type
= SYMBOL_TYPE (ref_sym
);
1006 /* Now read the baseclasses, if any, read the regular C struct or C++
1007 class member fields, attach the fields to the type, read the C++
1008 member functions, attach them to the type, and then read any tilde
1009 field (baseclass specifier for the class holding the main vtable). */
1011 if (!read_cfront_baseclasses (&fi
, &p
, type
, objfile
)
1012 /* g++ does this next, but cfront already did this:
1013 || !read_struct_fields (&fi, &p, type, objfile) */
1014 || !copy_cfront_struct_fields (&fi
, type
, objfile
)
1015 || !read_cfront_member_functions (&fi
, &p
, type
, objfile
)
1016 || !read_cfront_static_fields (&fi
, &p
, type
, objfile
)
1017 || !attach_fields_to_type (&fi
, type
, objfile
)
1018 || !attach_fn_fields_to_type (&fi
, type
)
1019 /* g++ does this next, but cfront doesn't seem to have this:
1020 || !read_tilde_fields (&fi, &p, type, objfile) */
1023 type
= error_type (&p
, objfile
);
1026 do_cleanups (back_to
);
1029 /* End of code added to support parsing of ARM/Cfront stabs strings */
1032 /* This routine fixes up symbol references/aliases to point to the original
1033 symbol definition. Returns 0 on failure, non-zero on success. */
1036 resolve_symbol_reference (struct objfile
*objfile
, struct symbol
*sym
, char *p
)
1039 struct symbol
*ref_sym
= 0;
1040 struct alias_list
*alias
;
1042 /* If this is not a symbol reference return now. */
1046 /* Use "#<num>" as the name; we'll fix the name later.
1047 We stored the original symbol name as "#<id>=<name>"
1048 so we can now search for "#<id>" to resolving the reference.
1049 We'll fix the names later by removing the "#<id>" or "#<id>=" */
1051 /*---------------------------------------------------------*/
1052 /* Get the reference id number, and
1053 advance p past the names so we can parse the rest.
1054 eg: id=2 for p : "2=", "2=z:r(0,1)" "2:r(0,1);l(#5,#6),l(#7,#4)" */
1055 /*---------------------------------------------------------*/
1057 /* This gets reference name from string. sym may not have a name. */
1059 /* Get the reference number associated with the reference id in the
1060 gdb stab string. From that reference number, get the main/primary
1061 symbol for this alias. */
1062 refnum
= process_reference (&p
);
1063 ref_sym
= ref_search (refnum
);
1066 complain (&lrs_general_complaint
, "symbol for reference not found");
1070 /* Parse the stab of the referencing symbol
1071 now that we have the referenced symbol.
1072 Add it as a new symbol and a link back to the referenced symbol.
1073 eg: p : "=", "=z:r(0,1)" ":r(0,1);l(#5,#6),l(#7,#4)" */
1076 /* If the stab symbol table and string contain:
1077 RSYM 0 5 00000000 868 #15=z:r(0,1)
1078 LBRAC 0 0 00000000 899 #5=
1079 SLINE 0 16 00000003 923 #6=
1080 Then the same symbols can be later referenced by:
1081 RSYM 0 5 00000000 927 #15:r(0,1);l(#5,#6)
1082 This is used in live range splitting to:
1083 1) specify that a symbol (#15) is actually just a new storage
1084 class for a symbol (#15=z) which was previously defined.
1085 2) specify that the beginning and ending ranges for a symbol
1086 (#15) are the values of the beginning (#5) and ending (#6)
1089 /* Read number as reference id.
1090 eg: p : "=", "=z:r(0,1)" ":r(0,1);l(#5,#6),l(#7,#4)" */
1091 /* FIXME! Might I want to use SYMBOL_CLASS (sym) = LOC_OPTIMIZED_OUT;
1092 in case of "l(0,0)"? */
1094 /*--------------------------------------------------*/
1095 /* Add this symbol to the reference list. */
1096 /*--------------------------------------------------*/
1098 alias
= (struct alias_list
*) obstack_alloc (&objfile
->type_obstack
,
1099 sizeof (struct alias_list
));
1102 complain (&lrs_general_complaint
, "Unable to allocate alias list memory");
1109 if (!SYMBOL_ALIASES (ref_sym
))
1111 SYMBOL_ALIASES (ref_sym
) = alias
;
1115 struct alias_list
*temp
;
1117 /* Get to the end of the list. */
1118 for (temp
= SYMBOL_ALIASES (ref_sym
);
1125 /* Want to fix up name so that other functions (eg. valops)
1126 will correctly print the name.
1127 Don't add_symbol_to_list so that lookup_symbol won't find it.
1128 nope... needed for fixups. */
1129 SYMBOL_NAME (sym
) = SYMBOL_NAME (ref_sym
);
1135 /* Structure for storing pointers to reference definitions for fast lookup
1136 during "process_later". */
1145 #define MAX_CHUNK_REFS 100
1146 #define REF_CHUNK_SIZE (MAX_CHUNK_REFS * sizeof (struct ref_map))
1147 #define REF_MAP_SIZE(ref_chunk) ((ref_chunk) * REF_CHUNK_SIZE)
1149 static struct ref_map
*ref_map
;
1151 /* Ptr to free cell in chunk's linked list. */
1152 static int ref_count
= 0;
1154 /* Number of chunks malloced. */
1155 static int ref_chunk
= 0;
1157 /* This file maintains a cache of stabs aliases found in the symbol
1158 table. If the symbol table changes, this cache must be cleared
1159 or we are left holding onto data in invalid obstacks. */
1161 stabsread_clear_cache (void)
1167 /* Create array of pointers mapping refids to symbols and stab strings.
1168 Add pointers to reference definition symbols and/or their values as we
1169 find them, using their reference numbers as our index.
1170 These will be used later when we resolve references. */
1172 ref_add (int refnum
, struct symbol
*sym
, char *stabs
, CORE_ADDR value
)
1176 if (refnum
>= ref_count
)
1177 ref_count
= refnum
+ 1;
1178 if (ref_count
> ref_chunk
* MAX_CHUNK_REFS
)
1180 int new_slots
= ref_count
- ref_chunk
* MAX_CHUNK_REFS
;
1181 int new_chunks
= new_slots
/ MAX_CHUNK_REFS
+ 1;
1182 ref_map
= (struct ref_map
*)
1183 xrealloc (ref_map
, REF_MAP_SIZE (ref_chunk
+ new_chunks
));
1184 memset (ref_map
+ ref_chunk
* MAX_CHUNK_REFS
, 0, new_chunks
* REF_CHUNK_SIZE
);
1185 ref_chunk
+= new_chunks
;
1187 ref_map
[refnum
].stabs
= stabs
;
1188 ref_map
[refnum
].sym
= sym
;
1189 ref_map
[refnum
].value
= value
;
1192 /* Return defined sym for the reference REFNUM. */
1194 ref_search (int refnum
)
1196 if (refnum
< 0 || refnum
> ref_count
)
1198 return ref_map
[refnum
].sym
;
1201 /* Return value for the reference REFNUM. */
1204 ref_search_value (int refnum
)
1206 if (refnum
< 0 || refnum
> ref_count
)
1208 return ref_map
[refnum
].value
;
1211 /* Parse a reference id in STRING and return the resulting
1212 reference number. Move STRING beyond the reference id. */
1215 process_reference (char **string
)
1220 if (**string
!= '#')
1223 /* Advance beyond the initial '#'. */
1226 /* Read number as reference id. */
1227 while (*p
&& isdigit (*p
))
1229 refnum
= refnum
* 10 + *p
- '0';
1236 /* If STRING defines a reference, store away a pointer to the reference
1237 definition for later use. Return the reference number. */
1240 symbol_reference_defined (char **string
)
1245 refnum
= process_reference (&p
);
1247 /* Defining symbols end in '=' */
1250 /* Symbol is being defined here. */
1256 /* Must be a reference. Either the symbol has already been defined,
1257 or this is a forward reference to it. */
1265 define_symbol (CORE_ADDR valu
, char *string
, int desc
, int type
,
1266 struct objfile
*objfile
)
1268 register struct symbol
*sym
;
1269 char *p
= (char *) strchr (string
, ':');
1274 /* We would like to eliminate nameless symbols, but keep their types.
1275 E.g. stab entry ":t10=*2" should produce a type 10, which is a pointer
1276 to type 2, but, should not create a symbol to address that type. Since
1277 the symbol will be nameless, there is no way any user can refer to it. */
1281 /* Ignore syms with empty names. */
1285 /* Ignore old-style symbols from cc -go */
1292 p
= strchr (p
, ':');
1295 /* If a nameless stab entry, all we need is the type, not the symbol.
1296 e.g. ":t10=*2" or a nameless enum like " :T16=ered:0,green:1,blue:2,;" */
1297 nameless
= (p
== string
|| ((string
[0] == ' ') && (string
[1] == ':')));
1299 current_symbol
= sym
= (struct symbol
*)
1300 obstack_alloc (&objfile
->symbol_obstack
, sizeof (struct symbol
));
1301 memset (sym
, 0, sizeof (struct symbol
));
1303 switch (type
& N_TYPE
)
1306 SYMBOL_SECTION (sym
) = SECT_OFF_TEXT (objfile
);
1309 SYMBOL_SECTION (sym
) = SECT_OFF_DATA (objfile
);
1312 SYMBOL_SECTION (sym
) = SECT_OFF_BSS (objfile
);
1316 if (processing_gcc_compilation
)
1318 /* GCC 2.x puts the line number in desc. SunOS apparently puts in the
1319 number of bytes occupied by a type or object, which we ignore. */
1320 SYMBOL_LINE (sym
) = desc
;
1324 SYMBOL_LINE (sym
) = 0; /* unknown */
1327 if (is_cplus_marker (string
[0]))
1329 /* Special GNU C++ names. */
1333 SYMBOL_NAME (sym
) = obsavestring ("this", strlen ("this"),
1334 &objfile
->symbol_obstack
);
1337 case 'v': /* $vtbl_ptr_type */
1338 /* Was: SYMBOL_NAME (sym) = "vptr"; */
1342 SYMBOL_NAME (sym
) = obsavestring ("eh_throw", strlen ("eh_throw"),
1343 &objfile
->symbol_obstack
);
1347 /* This was an anonymous type that was never fixed up. */
1350 #ifdef STATIC_TRANSFORM_NAME
1352 /* SunPRO (3.0 at least) static variable encoding. */
1357 complain (&unrecognized_cplus_name_complaint
, string
);
1358 goto normal
; /* Do *something* with it */
1361 else if (string
[0] == '#')
1363 /* Special GNU C extension for referencing symbols. */
1367 /* If STRING defines a new reference id, then add it to the
1368 reference map. Else it must be referring to a previously
1369 defined symbol, so add it to the alias list of the previously
1372 refnum
= symbol_reference_defined (&s
);
1374 ref_add (refnum
, sym
, string
, SYMBOL_VALUE (sym
));
1375 else if (!resolve_symbol_reference (objfile
, sym
, string
))
1378 /* S..P contains the name of the symbol. We need to store
1379 the correct name into SYMBOL_NAME. */
1385 SYMBOL_NAME (sym
) = (char *)
1386 obstack_alloc (&objfile
->symbol_obstack
, nlen
);
1387 strncpy (SYMBOL_NAME (sym
), s
, nlen
);
1388 SYMBOL_NAME (sym
)[nlen
] = '\0';
1389 SYMBOL_INIT_DEMANGLED_NAME (sym
, &objfile
->symbol_obstack
);
1392 /* FIXME! Want SYMBOL_NAME (sym) = 0;
1393 Get error if leave name 0. So give it something. */
1396 SYMBOL_NAME (sym
) = (char *)
1397 obstack_alloc (&objfile
->symbol_obstack
, nlen
);
1398 strncpy (SYMBOL_NAME (sym
), string
, nlen
);
1399 SYMBOL_NAME (sym
)[nlen
] = '\0';
1400 SYMBOL_INIT_DEMANGLED_NAME (sym
, &objfile
->symbol_obstack
);
1403 /* Advance STRING beyond the reference id. */
1409 SYMBOL_LANGUAGE (sym
) = current_subfile
->language
;
1410 SYMBOL_NAME (sym
) = (char *)
1411 obstack_alloc (&objfile
->symbol_obstack
, ((p
- string
) + 1));
1412 /* Open-coded memcpy--saves function call time. */
1413 /* FIXME: Does it really? Try replacing with simple strcpy and
1414 try it on an executable with a large symbol table. */
1415 /* FIXME: considering that gcc can open code memcpy anyway, I
1416 doubt it. xoxorich. */
1418 register char *p1
= string
;
1419 register char *p2
= SYMBOL_NAME (sym
);
1427 /* If this symbol is from a C++ compilation, then attempt to cache the
1428 demangled form for future reference. This is a typical time versus
1429 space tradeoff, that was decided in favor of time because it sped up
1430 C++ symbol lookups by a factor of about 20. */
1432 SYMBOL_INIT_DEMANGLED_NAME (sym
, &objfile
->symbol_obstack
);
1436 /* Determine the type of name being defined. */
1438 /* Getting GDB to correctly skip the symbol on an undefined symbol
1439 descriptor and not ever dump core is a very dodgy proposition if
1440 we do things this way. I say the acorn RISC machine can just
1441 fix their compiler. */
1442 /* The Acorn RISC machine's compiler can put out locals that don't
1443 start with "234=" or "(3,4)=", so assume anything other than the
1444 deftypes we know how to handle is a local. */
1445 if (!strchr ("cfFGpPrStTvVXCR", *p
))
1447 if (isdigit (*p
) || *p
== '(' || *p
== '-')
1456 /* c is a special case, not followed by a type-number.
1457 SYMBOL:c=iVALUE for an integer constant symbol.
1458 SYMBOL:c=rVALUE for a floating constant symbol.
1459 SYMBOL:c=eTYPE,INTVALUE for an enum constant symbol.
1460 e.g. "b:c=e6,0" for "const b = blob1"
1461 (where type 6 is defined by "blobs:t6=eblob1:0,blob2:1,;"). */
1464 SYMBOL_CLASS (sym
) = LOC_CONST
;
1465 SYMBOL_TYPE (sym
) = error_type (&p
, objfile
);
1466 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1467 add_symbol_to_list (sym
, &file_symbols
);
1475 double d
= atof (p
);
1478 /* FIXME-if-picky-about-floating-accuracy: Should be using
1479 target arithmetic to get the value. real.c in GCC
1480 probably has the necessary code. */
1482 /* FIXME: lookup_fundamental_type is a hack. We should be
1483 creating a type especially for the type of float constants.
1484 Problem is, what type should it be?
1486 Also, what should the name of this type be? Should we
1487 be using 'S' constants (see stabs.texinfo) instead? */
1489 SYMBOL_TYPE (sym
) = lookup_fundamental_type (objfile
,
1492 obstack_alloc (&objfile
->symbol_obstack
,
1493 TYPE_LENGTH (SYMBOL_TYPE (sym
)));
1494 store_typed_floating (dbl_valu
, SYMBOL_TYPE (sym
), d
);
1495 SYMBOL_VALUE_BYTES (sym
) = dbl_valu
;
1496 SYMBOL_CLASS (sym
) = LOC_CONST_BYTES
;
1501 /* Defining integer constants this way is kind of silly,
1502 since 'e' constants allows the compiler to give not
1503 only the value, but the type as well. C has at least
1504 int, long, unsigned int, and long long as constant
1505 types; other languages probably should have at least
1506 unsigned as well as signed constants. */
1508 /* We just need one int constant type for all objfiles.
1509 It doesn't depend on languages or anything (arguably its
1510 name should be a language-specific name for a type of
1511 that size, but I'm inclined to say that if the compiler
1512 wants a nice name for the type, it can use 'e'). */
1513 static struct type
*int_const_type
;
1515 /* Yes, this is as long as a *host* int. That is because we
1517 if (int_const_type
== NULL
)
1519 init_type (TYPE_CODE_INT
,
1520 sizeof (int) * HOST_CHAR_BIT
/ TARGET_CHAR_BIT
, 0,
1522 (struct objfile
*) NULL
);
1523 SYMBOL_TYPE (sym
) = int_const_type
;
1524 SYMBOL_VALUE (sym
) = atoi (p
);
1525 SYMBOL_CLASS (sym
) = LOC_CONST
;
1529 /* SYMBOL:c=eTYPE,INTVALUE for a constant symbol whose value
1530 can be represented as integral.
1531 e.g. "b:c=e6,0" for "const b = blob1"
1532 (where type 6 is defined by "blobs:t6=eblob1:0,blob2:1,;"). */
1534 SYMBOL_CLASS (sym
) = LOC_CONST
;
1535 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1539 SYMBOL_TYPE (sym
) = error_type (&p
, objfile
);
1544 /* If the value is too big to fit in an int (perhaps because
1545 it is unsigned), or something like that, we silently get
1546 a bogus value. The type and everything else about it is
1547 correct. Ideally, we should be using whatever we have
1548 available for parsing unsigned and long long values,
1550 SYMBOL_VALUE (sym
) = atoi (p
);
1555 SYMBOL_CLASS (sym
) = LOC_CONST
;
1556 SYMBOL_TYPE (sym
) = error_type (&p
, objfile
);
1559 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1560 add_symbol_to_list (sym
, &file_symbols
);
1564 /* The name of a caught exception. */
1565 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1566 SYMBOL_CLASS (sym
) = LOC_LABEL
;
1567 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1568 SYMBOL_VALUE_ADDRESS (sym
) = valu
;
1569 add_symbol_to_list (sym
, &local_symbols
);
1573 /* A static function definition. */
1574 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1575 SYMBOL_CLASS (sym
) = LOC_BLOCK
;
1576 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1577 add_symbol_to_list (sym
, &file_symbols
);
1578 /* fall into process_function_types. */
1580 process_function_types
:
1581 /* Function result types are described as the result type in stabs.
1582 We need to convert this to the function-returning-type-X type
1583 in GDB. E.g. "int" is converted to "function returning int". */
1584 if (TYPE_CODE (SYMBOL_TYPE (sym
)) != TYPE_CODE_FUNC
)
1585 SYMBOL_TYPE (sym
) = lookup_function_type (SYMBOL_TYPE (sym
));
1587 /* All functions in C++ have prototypes. */
1588 if (SYMBOL_LANGUAGE (sym
) == language_cplus
)
1589 TYPE_FLAGS (SYMBOL_TYPE (sym
)) |= TYPE_FLAG_PROTOTYPED
;
1591 /* fall into process_prototype_types */
1593 process_prototype_types
:
1594 /* Sun acc puts declared types of arguments here. */
1597 struct type
*ftype
= SYMBOL_TYPE (sym
);
1602 /* Obtain a worst case guess for the number of arguments
1603 by counting the semicolons. */
1610 /* Allocate parameter information fields and fill them in. */
1611 TYPE_FIELDS (ftype
) = (struct field
*)
1612 TYPE_ALLOC (ftype
, nsemi
* sizeof (struct field
));
1617 /* A type number of zero indicates the start of varargs.
1618 FIXME: GDB currently ignores vararg functions. */
1619 if (p
[0] == '0' && p
[1] == '\0')
1621 ptype
= read_type (&p
, objfile
);
1623 /* The Sun compilers mark integer arguments, which should
1624 be promoted to the width of the calling conventions, with
1625 a type which references itself. This type is turned into
1626 a TYPE_CODE_VOID type by read_type, and we have to turn
1627 it back into builtin_type_int here.
1628 FIXME: Do we need a new builtin_type_promoted_int_arg ? */
1629 if (TYPE_CODE (ptype
) == TYPE_CODE_VOID
)
1630 ptype
= builtin_type_int
;
1631 TYPE_FIELD_TYPE (ftype
, nparams
) = ptype
;
1632 TYPE_FIELD_ARTIFICIAL (ftype
, nparams
++) = 0;
1634 TYPE_NFIELDS (ftype
) = nparams
;
1635 TYPE_FLAGS (ftype
) |= TYPE_FLAG_PROTOTYPED
;
1640 /* A global function definition. */
1641 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1642 SYMBOL_CLASS (sym
) = LOC_BLOCK
;
1643 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1644 add_symbol_to_list (sym
, &global_symbols
);
1645 goto process_function_types
;
1648 /* For a class G (global) symbol, it appears that the
1649 value is not correct. It is necessary to search for the
1650 corresponding linker definition to find the value.
1651 These definitions appear at the end of the namelist. */
1652 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1653 SYMBOL_CLASS (sym
) = LOC_STATIC
;
1654 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1655 /* Don't add symbol references to global_sym_chain.
1656 Symbol references don't have valid names and wont't match up with
1657 minimal symbols when the global_sym_chain is relocated.
1658 We'll fixup symbol references when we fixup the defining symbol. */
1659 if (SYMBOL_NAME (sym
) && SYMBOL_NAME (sym
)[0] != '#')
1661 i
= hashname (SYMBOL_NAME (sym
));
1662 SYMBOL_VALUE_CHAIN (sym
) = global_sym_chain
[i
];
1663 global_sym_chain
[i
] = sym
;
1665 add_symbol_to_list (sym
, &global_symbols
);
1668 /* This case is faked by a conditional above,
1669 when there is no code letter in the dbx data.
1670 Dbx data never actually contains 'l'. */
1673 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1674 SYMBOL_CLASS (sym
) = LOC_LOCAL
;
1675 SYMBOL_VALUE (sym
) = valu
;
1676 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1677 add_symbol_to_list (sym
, &local_symbols
);
1682 /* pF is a two-letter code that means a function parameter in Fortran.
1683 The type-number specifies the type of the return value.
1684 Translate it into a pointer-to-function type. */
1688 = lookup_pointer_type
1689 (lookup_function_type (read_type (&p
, objfile
)));
1692 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1694 /* Normally this is a parameter, a LOC_ARG. On the i960, it
1695 can also be a LOC_LOCAL_ARG depending on symbol type. */
1696 #ifndef DBX_PARM_SYMBOL_CLASS
1697 #define DBX_PARM_SYMBOL_CLASS(type) LOC_ARG
1700 SYMBOL_CLASS (sym
) = DBX_PARM_SYMBOL_CLASS (type
);
1701 SYMBOL_VALUE (sym
) = valu
;
1702 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1703 add_symbol_to_list (sym
, &local_symbols
);
1705 if (TARGET_BYTE_ORDER
!= BFD_ENDIAN_BIG
)
1707 /* On little-endian machines, this crud is never necessary,
1708 and, if the extra bytes contain garbage, is harmful. */
1712 /* If it's gcc-compiled, if it says `short', believe it. */
1713 if (processing_gcc_compilation
|| BELIEVE_PCC_PROMOTION
)
1716 if (!BELIEVE_PCC_PROMOTION
)
1718 /* This is the signed type which arguments get promoted to. */
1719 static struct type
*pcc_promotion_type
;
1720 /* This is the unsigned type which arguments get promoted to. */
1721 static struct type
*pcc_unsigned_promotion_type
;
1723 /* Call it "int" because this is mainly C lossage. */
1724 if (pcc_promotion_type
== NULL
)
1725 pcc_promotion_type
=
1726 init_type (TYPE_CODE_INT
, TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
1729 if (pcc_unsigned_promotion_type
== NULL
)
1730 pcc_unsigned_promotion_type
=
1731 init_type (TYPE_CODE_INT
, TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
1732 TYPE_FLAG_UNSIGNED
, "unsigned int", NULL
);
1734 if (BELIEVE_PCC_PROMOTION_TYPE
)
1736 /* This is defined on machines (e.g. sparc) where we
1737 should believe the type of a PCC 'short' argument,
1738 but shouldn't believe the address (the address is the
1739 address of the corresponding int).
1741 My guess is that this correction, as opposed to
1742 changing the parameter to an 'int' (as done below,
1743 for PCC on most machines), is the right thing to do
1744 on all machines, but I don't want to risk breaking
1745 something that already works. On most PCC machines,
1746 the sparc problem doesn't come up because the calling
1747 function has to zero the top bytes (not knowing
1748 whether the called function wants an int or a short),
1749 so there is little practical difference between an
1750 int and a short (except perhaps what happens when the
1751 GDB user types "print short_arg = 0x10000;").
1753 Hacked for SunOS 4.1 by gnu@cygnus.com. In 4.1, the
1754 compiler actually produces the correct address (we
1755 don't need to fix it up). I made this code adapt so
1756 that it will offset the symbol if it was pointing at
1757 an int-aligned location and not otherwise. This way
1758 you can use the same gdb for 4.0.x and 4.1 systems.
1760 If the parameter is shorter than an int, and is
1761 integral (e.g. char, short, or unsigned equivalent),
1762 and is claimed to be passed on an integer boundary,
1763 don't believe it! Offset the parameter's address to
1764 the tail-end of that integer. */
1766 if (TYPE_LENGTH (SYMBOL_TYPE (sym
)) < TYPE_LENGTH (pcc_promotion_type
)
1767 && TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_INT
1768 && 0 == SYMBOL_VALUE (sym
) % TYPE_LENGTH (pcc_promotion_type
))
1770 SYMBOL_VALUE (sym
) += TYPE_LENGTH (pcc_promotion_type
)
1771 - TYPE_LENGTH (SYMBOL_TYPE (sym
));
1777 /* If PCC says a parameter is a short or a char,
1778 it is really an int. */
1779 if (TYPE_LENGTH (SYMBOL_TYPE (sym
)) < TYPE_LENGTH (pcc_promotion_type
)
1780 && TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_INT
)
1783 TYPE_UNSIGNED (SYMBOL_TYPE (sym
))
1784 ? pcc_unsigned_promotion_type
1785 : pcc_promotion_type
;
1792 /* acc seems to use P to declare the prototypes of functions that
1793 are referenced by this file. gdb is not prepared to deal
1794 with this extra information. FIXME, it ought to. */
1797 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1798 goto process_prototype_types
;
1803 /* Parameter which is in a register. */
1804 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1805 SYMBOL_CLASS (sym
) = LOC_REGPARM
;
1806 SYMBOL_VALUE (sym
) = STAB_REG_TO_REGNUM (valu
);
1807 if (SYMBOL_VALUE (sym
) >= NUM_REGS
+ NUM_PSEUDO_REGS
)
1809 complain (®_value_complaint
, SYMBOL_VALUE (sym
),
1810 NUM_REGS
+ NUM_PSEUDO_REGS
,
1811 SYMBOL_SOURCE_NAME (sym
));
1812 SYMBOL_VALUE (sym
) = SP_REGNUM
; /* Known safe, though useless */
1814 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1815 add_symbol_to_list (sym
, &local_symbols
);
1819 /* Register variable (either global or local). */
1820 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1821 SYMBOL_CLASS (sym
) = LOC_REGISTER
;
1822 SYMBOL_VALUE (sym
) = STAB_REG_TO_REGNUM (valu
);
1823 if (SYMBOL_VALUE (sym
) >= NUM_REGS
+ NUM_PSEUDO_REGS
)
1825 complain (®_value_complaint
, SYMBOL_VALUE (sym
),
1826 NUM_REGS
+ NUM_PSEUDO_REGS
,
1827 SYMBOL_SOURCE_NAME (sym
));
1828 SYMBOL_VALUE (sym
) = SP_REGNUM
; /* Known safe, though useless */
1830 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1831 if (within_function
)
1833 /* Sun cc uses a pair of symbols, one 'p' and one 'r' with the same
1834 name to represent an argument passed in a register.
1835 GCC uses 'P' for the same case. So if we find such a symbol pair
1836 we combine it into one 'P' symbol. For Sun cc we need to do this
1837 regardless of REG_STRUCT_HAS_ADDR, because the compiler puts out
1838 the 'p' symbol even if it never saves the argument onto the stack.
1840 On most machines, we want to preserve both symbols, so that
1841 we can still get information about what is going on with the
1842 stack (VAX for computing args_printed, using stack slots instead
1843 of saved registers in backtraces, etc.).
1845 Note that this code illegally combines
1846 main(argc) struct foo argc; { register struct foo argc; }
1847 but this case is considered pathological and causes a warning
1848 from a decent compiler. */
1851 && local_symbols
->nsyms
> 0
1852 #ifndef USE_REGISTER_NOT_ARG
1853 && REG_STRUCT_HAS_ADDR_P ()
1854 && REG_STRUCT_HAS_ADDR (processing_gcc_compilation
,
1856 && (TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_STRUCT
1857 || TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_UNION
1858 || TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_SET
1859 || TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_BITSTRING
)
1863 struct symbol
*prev_sym
;
1864 prev_sym
= local_symbols
->symbol
[local_symbols
->nsyms
- 1];
1865 if ((SYMBOL_CLASS (prev_sym
) == LOC_REF_ARG
1866 || SYMBOL_CLASS (prev_sym
) == LOC_ARG
)
1867 && STREQ (SYMBOL_NAME (prev_sym
), SYMBOL_NAME (sym
)))
1869 SYMBOL_CLASS (prev_sym
) = LOC_REGPARM
;
1870 /* Use the type from the LOC_REGISTER; that is the type
1871 that is actually in that register. */
1872 SYMBOL_TYPE (prev_sym
) = SYMBOL_TYPE (sym
);
1873 SYMBOL_VALUE (prev_sym
) = SYMBOL_VALUE (sym
);
1878 add_symbol_to_list (sym
, &local_symbols
);
1881 add_symbol_to_list (sym
, &file_symbols
);
1885 /* Static symbol at top level of file */
1886 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1887 SYMBOL_CLASS (sym
) = LOC_STATIC
;
1888 SYMBOL_VALUE_ADDRESS (sym
) = valu
;
1889 #ifdef STATIC_TRANSFORM_NAME
1890 if (IS_STATIC_TRANSFORM_NAME (SYMBOL_NAME (sym
)))
1892 struct minimal_symbol
*msym
;
1893 msym
= lookup_minimal_symbol (SYMBOL_NAME (sym
), NULL
, objfile
);
1896 SYMBOL_NAME (sym
) = STATIC_TRANSFORM_NAME (SYMBOL_NAME (sym
));
1897 SYMBOL_VALUE_ADDRESS (sym
) = SYMBOL_VALUE_ADDRESS (msym
);
1901 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1902 add_symbol_to_list (sym
, &file_symbols
);
1906 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1908 /* For a nameless type, we don't want a create a symbol, thus we
1909 did not use `sym'. Return without further processing. */
1913 SYMBOL_CLASS (sym
) = LOC_TYPEDEF
;
1914 SYMBOL_VALUE (sym
) = valu
;
1915 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1916 /* C++ vagaries: we may have a type which is derived from
1917 a base type which did not have its name defined when the
1918 derived class was output. We fill in the derived class's
1919 base part member's name here in that case. */
1920 if (TYPE_NAME (SYMBOL_TYPE (sym
)) != NULL
)
1921 if ((TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_STRUCT
1922 || TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_UNION
)
1923 && TYPE_N_BASECLASSES (SYMBOL_TYPE (sym
)))
1926 for (j
= TYPE_N_BASECLASSES (SYMBOL_TYPE (sym
)) - 1; j
>= 0; j
--)
1927 if (TYPE_BASECLASS_NAME (SYMBOL_TYPE (sym
), j
) == 0)
1928 TYPE_BASECLASS_NAME (SYMBOL_TYPE (sym
), j
) =
1929 type_name_no_tag (TYPE_BASECLASS (SYMBOL_TYPE (sym
), j
));
1932 if (TYPE_NAME (SYMBOL_TYPE (sym
)) == NULL
)
1934 /* gcc-2.6 or later (when using -fvtable-thunks)
1935 emits a unique named type for a vtable entry.
1936 Some gdb code depends on that specific name. */
1937 extern const char vtbl_ptr_name
[];
1939 if ((TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_PTR
1940 && strcmp (SYMBOL_NAME (sym
), vtbl_ptr_name
))
1941 || TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_FUNC
)
1943 /* If we are giving a name to a type such as "pointer to
1944 foo" or "function returning foo", we better not set
1945 the TYPE_NAME. If the program contains "typedef char
1946 *caddr_t;", we don't want all variables of type char
1947 * to print as caddr_t. This is not just a
1948 consequence of GDB's type management; PCC and GCC (at
1949 least through version 2.4) both output variables of
1950 either type char * or caddr_t with the type number
1951 defined in the 't' symbol for caddr_t. If a future
1952 compiler cleans this up it GDB is not ready for it
1953 yet, but if it becomes ready we somehow need to
1954 disable this check (without breaking the PCC/GCC2.4
1959 Fortunately, this check seems not to be necessary
1960 for anything except pointers or functions. */
1961 /* ezannoni: 2000-10-26. This seems to apply for
1962 versions of gcc older than 2.8. This was the original
1963 problem: with the following code gdb would tell that
1964 the type for name1 is caddr_t, and func is char()
1965 typedef char *caddr_t;
1977 /* Pascal accepts names for pointer types. */
1978 if (current_subfile
->language
== language_pascal
)
1980 TYPE_NAME (SYMBOL_TYPE (sym
)) = SYMBOL_NAME (sym
);
1984 TYPE_NAME (SYMBOL_TYPE (sym
)) = SYMBOL_NAME (sym
);
1987 add_symbol_to_list (sym
, &file_symbols
);
1991 /* Struct, union, or enum tag. For GNU C++, this can be be followed
1992 by 't' which means we are typedef'ing it as well. */
1993 synonym
= *p
== 't';
1997 /* The semantics of C++ state that "struct foo { ... }" also defines
1998 a typedef for "foo". Unfortunately, cfront never makes the typedef
1999 when translating C++ into C. We make the typedef here so that
2000 "ptype foo" works as expected for cfront translated code. */
2001 else if (current_subfile
->language
== language_cplus
)
2004 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
2006 /* For a nameless type, we don't want a create a symbol, thus we
2007 did not use `sym'. Return without further processing. */
2011 SYMBOL_CLASS (sym
) = LOC_TYPEDEF
;
2012 SYMBOL_VALUE (sym
) = valu
;
2013 SYMBOL_NAMESPACE (sym
) = STRUCT_NAMESPACE
;
2014 if (TYPE_TAG_NAME (SYMBOL_TYPE (sym
)) == 0)
2015 TYPE_TAG_NAME (SYMBOL_TYPE (sym
))
2016 = obconcat (&objfile
->type_obstack
, "", "", SYMBOL_NAME (sym
));
2017 add_symbol_to_list (sym
, &file_symbols
);
2021 /* Clone the sym and then modify it. */
2022 register struct symbol
*typedef_sym
= (struct symbol
*)
2023 obstack_alloc (&objfile
->symbol_obstack
, sizeof (struct symbol
));
2024 *typedef_sym
= *sym
;
2025 SYMBOL_CLASS (typedef_sym
) = LOC_TYPEDEF
;
2026 SYMBOL_VALUE (typedef_sym
) = valu
;
2027 SYMBOL_NAMESPACE (typedef_sym
) = VAR_NAMESPACE
;
2028 if (TYPE_NAME (SYMBOL_TYPE (sym
)) == 0)
2029 TYPE_NAME (SYMBOL_TYPE (sym
))
2030 = obconcat (&objfile
->type_obstack
, "", "", SYMBOL_NAME (sym
));
2031 add_symbol_to_list (typedef_sym
, &file_symbols
);
2036 /* Static symbol of local scope */
2037 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
2038 SYMBOL_CLASS (sym
) = LOC_STATIC
;
2039 SYMBOL_VALUE_ADDRESS (sym
) = valu
;
2040 #ifdef STATIC_TRANSFORM_NAME
2041 if (IS_STATIC_TRANSFORM_NAME (SYMBOL_NAME (sym
)))
2043 struct minimal_symbol
*msym
;
2044 msym
= lookup_minimal_symbol (SYMBOL_NAME (sym
), NULL
, objfile
);
2047 SYMBOL_NAME (sym
) = STATIC_TRANSFORM_NAME (SYMBOL_NAME (sym
));
2048 SYMBOL_VALUE_ADDRESS (sym
) = SYMBOL_VALUE_ADDRESS (msym
);
2052 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
2054 add_symbol_to_list (sym
, &global_symbols
);
2056 add_symbol_to_list (sym
, &local_symbols
);
2060 /* Reference parameter */
2061 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
2062 SYMBOL_CLASS (sym
) = LOC_REF_ARG
;
2063 SYMBOL_VALUE (sym
) = valu
;
2064 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
2065 add_symbol_to_list (sym
, &local_symbols
);
2069 /* Reference parameter which is in a register. */
2070 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
2071 SYMBOL_CLASS (sym
) = LOC_REGPARM_ADDR
;
2072 SYMBOL_VALUE (sym
) = STAB_REG_TO_REGNUM (valu
);
2073 if (SYMBOL_VALUE (sym
) >= NUM_REGS
+ NUM_PSEUDO_REGS
)
2075 complain (®_value_complaint
, SYMBOL_VALUE (sym
),
2076 NUM_REGS
+ NUM_PSEUDO_REGS
,
2077 SYMBOL_SOURCE_NAME (sym
));
2078 SYMBOL_VALUE (sym
) = SP_REGNUM
; /* Known safe, though useless */
2080 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
2081 add_symbol_to_list (sym
, &local_symbols
);
2085 /* This is used by Sun FORTRAN for "function result value".
2086 Sun claims ("dbx and dbxtool interfaces", 2nd ed)
2087 that Pascal uses it too, but when I tried it Pascal used
2088 "x:3" (local symbol) instead. */
2089 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
2090 SYMBOL_CLASS (sym
) = LOC_LOCAL
;
2091 SYMBOL_VALUE (sym
) = valu
;
2092 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
2093 add_symbol_to_list (sym
, &local_symbols
);
2096 /* New code added to support cfront stabs strings.
2097 Note: case 'P' already handled above */
2099 /* Cfront type continuation coming up!
2100 Find the original definition and add to it.
2101 We'll have to do this for the typedef too,
2102 since we cloned the symbol to define a type in read_type.
2103 Stabs info examples:
2105 foo__1CFv :ZtF (first def foo__1CFv:F(0,3);(0,24))
2106 C:ZsC;;__ct__1CFv func1__1CFv func2__1CFv ... ;;;
2107 where C is the name of the class.
2108 Unfortunately, we can't lookup the original symbol yet 'cuz
2109 we haven't finished reading all the symbols.
2110 Instead, we save it for processing later */
2111 process_later (sym
, p
, resolve_cfront_continuation
);
2112 SYMBOL_TYPE (sym
) = error_type (&p
, objfile
); /* FIXME! change later */
2113 SYMBOL_CLASS (sym
) = LOC_CONST
;
2114 SYMBOL_VALUE (sym
) = 0;
2115 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
2116 /* Don't add to list - we'll delete it later when
2117 we add the continuation to the real sym */
2119 /* End of new code added to support cfront stabs strings */
2122 SYMBOL_TYPE (sym
) = error_type (&p
, objfile
);
2123 SYMBOL_CLASS (sym
) = LOC_CONST
;
2124 SYMBOL_VALUE (sym
) = 0;
2125 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
2126 add_symbol_to_list (sym
, &file_symbols
);
2130 /* When passing structures to a function, some systems sometimes pass
2131 the address in a register, not the structure itself. */
2133 if (REG_STRUCT_HAS_ADDR_P ()
2134 && REG_STRUCT_HAS_ADDR (processing_gcc_compilation
, SYMBOL_TYPE (sym
))
2135 && (SYMBOL_CLASS (sym
) == LOC_REGPARM
|| SYMBOL_CLASS (sym
) == LOC_ARG
))
2137 struct type
*symbol_type
= check_typedef (SYMBOL_TYPE (sym
));
2139 if ((TYPE_CODE (symbol_type
) == TYPE_CODE_STRUCT
)
2140 || (TYPE_CODE (symbol_type
) == TYPE_CODE_UNION
)
2141 || (TYPE_CODE (symbol_type
) == TYPE_CODE_BITSTRING
)
2142 || (TYPE_CODE (symbol_type
) == TYPE_CODE_SET
))
2144 /* If REG_STRUCT_HAS_ADDR yields non-zero we have to convert
2145 LOC_REGPARM to LOC_REGPARM_ADDR for structures and unions. */
2146 if (SYMBOL_CLASS (sym
) == LOC_REGPARM
)
2147 SYMBOL_CLASS (sym
) = LOC_REGPARM_ADDR
;
2148 /* Likewise for converting LOC_ARG to LOC_REF_ARG (for the 7th
2149 and subsequent arguments on the sparc, for example). */
2150 else if (SYMBOL_CLASS (sym
) == LOC_ARG
)
2151 SYMBOL_CLASS (sym
) = LOC_REF_ARG
;
2155 /* Is there more to parse? For example LRS/alias information? */
2156 while (*p
&& *p
== ';')
2159 if (*p
&& p
[0] == 'l' && p
[1] == '(')
2161 /* GNU extensions for live range splitting may be appended to
2162 the end of the stab string. eg. "l(#1,#2);l(#3,#5)" */
2164 /* Resolve the live range and add it to SYM's live range list. */
2165 if (!resolve_live_range (objfile
, sym
, p
))
2168 /* Find end of live range info. */
2169 p
= strchr (p
, ')');
2170 if (!*p
|| *p
!= ')')
2172 complain (&lrs_general_complaint
, "live range format not recognized");
2181 /* Add the live range found in P to the symbol SYM in objfile OBJFILE. Returns
2182 non-zero on success, zero otherwise. */
2185 resolve_live_range (struct objfile
*objfile
, struct symbol
*sym
, char *p
)
2188 CORE_ADDR start
, end
;
2190 /* Sanity check the beginning of the stabs string. */
2191 if (!*p
|| *p
!= 'l')
2193 complain (&lrs_general_complaint
, "live range string 1");
2198 if (!*p
|| *p
!= '(')
2200 complain (&lrs_general_complaint
, "live range string 2");
2205 /* Get starting value of range and advance P past the reference id.
2207 ?!? In theory, the process_reference should never fail, but we should
2208 catch that case just in case the compiler scrogged the stabs. */
2209 refnum
= process_reference (&p
);
2210 start
= ref_search_value (refnum
);
2213 complain (&lrs_general_complaint
, "Live range symbol not found 1");
2217 if (!*p
|| *p
!= ',')
2219 complain (&lrs_general_complaint
, "live range string 3");
2224 /* Get ending value of range and advance P past the reference id.
2226 ?!? In theory, the process_reference should never fail, but we should
2227 catch that case just in case the compiler scrogged the stabs. */
2228 refnum
= process_reference (&p
);
2229 end
= ref_search_value (refnum
);
2232 complain (&lrs_general_complaint
, "Live range symbol not found 2");
2236 if (!*p
|| *p
!= ')')
2238 complain (&lrs_general_complaint
, "live range string 4");
2242 /* Now that we know the bounds of the range, add it to the
2244 add_live_range (objfile
, sym
, start
, end
);
2249 /* Add a new live range defined by START and END to the symbol SYM
2250 in objfile OBJFILE. */
2253 add_live_range (struct objfile
*objfile
, struct symbol
*sym
, CORE_ADDR start
,
2256 struct range_list
*r
, *rs
;
2260 complain (&lrs_general_complaint
, "end of live range follows start");
2264 /* Alloc new live range structure. */
2265 r
= (struct range_list
*)
2266 obstack_alloc (&objfile
->type_obstack
,
2267 sizeof (struct range_list
));
2272 /* Append this range to the symbol's range list. */
2273 if (!SYMBOL_RANGES (sym
))
2274 SYMBOL_RANGES (sym
) = r
;
2277 /* Get the last range for the symbol. */
2278 for (rs
= SYMBOL_RANGES (sym
); rs
->next
; rs
= rs
->next
)
2285 /* Skip rest of this symbol and return an error type.
2287 General notes on error recovery: error_type always skips to the
2288 end of the symbol (modulo cretinous dbx symbol name continuation).
2289 Thus code like this:
2291 if (*(*pp)++ != ';')
2292 return error_type (pp, objfile);
2294 is wrong because if *pp starts out pointing at '\0' (typically as the
2295 result of an earlier error), it will be incremented to point to the
2296 start of the next symbol, which might produce strange results, at least
2297 if you run off the end of the string table. Instead use
2300 return error_type (pp, objfile);
2306 foo = error_type (pp, objfile);
2310 And in case it isn't obvious, the point of all this hair is so the compiler
2311 can define new types and new syntaxes, and old versions of the
2312 debugger will be able to read the new symbol tables. */
2314 static struct type
*
2315 error_type (char **pp
, struct objfile
*objfile
)
2317 complain (&error_type_complaint
);
2320 /* Skip to end of symbol. */
2321 while (**pp
!= '\0')
2326 /* Check for and handle cretinous dbx symbol name continuation! */
2327 if ((*pp
)[-1] == '\\' || (*pp
)[-1] == '?')
2329 *pp
= next_symbol_text (objfile
);
2336 return (builtin_type_error
);
2340 /* Read type information or a type definition; return the type. Even
2341 though this routine accepts either type information or a type
2342 definition, the distinction is relevant--some parts of stabsread.c
2343 assume that type information starts with a digit, '-', or '(' in
2344 deciding whether to call read_type. */
2347 read_type (register char **pp
, struct objfile
*objfile
)
2349 register struct type
*type
= 0;
2352 char type_descriptor
;
2354 /* Size in bits of type if specified by a type attribute, or -1 if
2355 there is no size attribute. */
2358 /* Used to distinguish string and bitstring from char-array and set. */
2361 /* Read type number if present. The type number may be omitted.
2362 for instance in a two-dimensional array declared with type
2363 "ar1;1;10;ar1;1;10;4". */
2364 if ((**pp
>= '0' && **pp
<= '9')
2368 if (read_type_number (pp
, typenums
) != 0)
2369 return error_type (pp
, objfile
);
2371 /* Type is not being defined here. Either it already exists,
2372 or this is a forward reference to it. dbx_alloc_type handles
2375 return dbx_alloc_type (typenums
, objfile
);
2377 /* Type is being defined here. */
2379 Also skip the type descriptor - we get it below with (*pp)[-1]. */
2384 /* 'typenums=' not present, type is anonymous. Read and return
2385 the definition, but don't put it in the type vector. */
2386 typenums
[0] = typenums
[1] = -1;
2391 type_descriptor
= (*pp
)[-1];
2392 switch (type_descriptor
)
2396 enum type_code code
;
2398 /* Used to index through file_symbols. */
2399 struct pending
*ppt
;
2402 /* Name including "struct", etc. */
2406 char *from
, *to
, *p
, *q1
, *q2
;
2408 /* Set the type code according to the following letter. */
2412 code
= TYPE_CODE_STRUCT
;
2415 code
= TYPE_CODE_UNION
;
2418 code
= TYPE_CODE_ENUM
;
2422 /* Complain and keep going, so compilers can invent new
2423 cross-reference types. */
2424 static struct complaint msg
=
2425 {"Unrecognized cross-reference type `%c'", 0, 0};
2426 complain (&msg
, (*pp
)[0]);
2427 code
= TYPE_CODE_STRUCT
;
2432 q1
= strchr (*pp
, '<');
2433 p
= strchr (*pp
, ':');
2435 return error_type (pp
, objfile
);
2436 if (q1
&& p
> q1
&& p
[1] == ':')
2438 int nesting_level
= 0;
2439 for (q2
= q1
; *q2
; q2
++)
2443 else if (*q2
== '>')
2445 else if (*q2
== ':' && nesting_level
== 0)
2450 return error_type (pp
, objfile
);
2453 (char *) obstack_alloc (&objfile
->type_obstack
, p
- *pp
+ 1);
2455 /* Copy the name. */
2461 /* Set the pointer ahead of the name which we just read, and
2466 /* Now check to see whether the type has already been
2467 declared. This was written for arrays of cross-referenced
2468 types before we had TYPE_CODE_TARGET_STUBBED, so I'm pretty
2469 sure it is not necessary anymore. But it might be a good
2470 idea, to save a little memory. */
2472 for (ppt
= file_symbols
; ppt
; ppt
= ppt
->next
)
2473 for (i
= 0; i
< ppt
->nsyms
; i
++)
2475 struct symbol
*sym
= ppt
->symbol
[i
];
2477 if (SYMBOL_CLASS (sym
) == LOC_TYPEDEF
2478 && SYMBOL_NAMESPACE (sym
) == STRUCT_NAMESPACE
2479 && (TYPE_CODE (SYMBOL_TYPE (sym
)) == code
)
2480 && STREQ (SYMBOL_NAME (sym
), type_name
))
2482 obstack_free (&objfile
->type_obstack
, type_name
);
2483 type
= SYMBOL_TYPE (sym
);
2488 /* Didn't find the type to which this refers, so we must
2489 be dealing with a forward reference. Allocate a type
2490 structure for it, and keep track of it so we can
2491 fill in the rest of the fields when we get the full
2493 type
= dbx_alloc_type (typenums
, objfile
);
2494 TYPE_CODE (type
) = code
;
2495 TYPE_TAG_NAME (type
) = type_name
;
2496 INIT_CPLUS_SPECIFIC (type
);
2497 TYPE_FLAGS (type
) |= TYPE_FLAG_STUB
;
2499 add_undefined_type (type
);
2503 case '-': /* RS/6000 built-in type */
2517 /* We deal with something like t(1,2)=(3,4)=... which
2518 the Lucid compiler and recent gcc versions (post 2.7.3) use. */
2520 /* Allocate and enter the typedef type first.
2521 This handles recursive types. */
2522 type
= dbx_alloc_type (typenums
, objfile
);
2523 TYPE_CODE (type
) = TYPE_CODE_TYPEDEF
;
2525 struct type
*xtype
= read_type (pp
, objfile
);
2528 /* It's being defined as itself. That means it is "void". */
2529 TYPE_CODE (type
) = TYPE_CODE_VOID
;
2530 TYPE_LENGTH (type
) = 1;
2532 else if (type_size
>= 0 || is_string
)
2534 /* This is the absolute wrong way to construct types. Every
2535 other debug format has found a way around this problem and
2536 the related problems with unnecessarily stubbed types;
2537 someone motivated should attempt to clean up the issue
2538 here as well. Once a type pointed to has been created it
2539 should not be modified. */
2540 replace_type (type
, xtype
);
2541 TYPE_NAME (type
) = NULL
;
2542 TYPE_TAG_NAME (type
) = NULL
;
2546 TYPE_FLAGS (type
) |= TYPE_FLAG_TARGET_STUB
;
2547 TYPE_TARGET_TYPE (type
) = xtype
;
2552 /* In the following types, we must be sure to overwrite any existing
2553 type that the typenums refer to, rather than allocating a new one
2554 and making the typenums point to the new one. This is because there
2555 may already be pointers to the existing type (if it had been
2556 forward-referenced), and we must change it to a pointer, function,
2557 reference, or whatever, *in-place*. */
2560 type1
= read_type (pp
, objfile
);
2561 type
= make_pointer_type (type1
, dbx_lookup_type (typenums
));
2564 case '&': /* Reference to another type */
2565 type1
= read_type (pp
, objfile
);
2566 type
= make_reference_type (type1
, dbx_lookup_type (typenums
));
2569 case 'f': /* Function returning another type */
2570 if (os9k_stabs
&& **pp
== '(')
2572 /* Function prototype; parse it.
2573 We must conditionalize this on os9k_stabs because otherwise
2574 it could be confused with a Sun-style (1,3) typenumber
2580 t
= read_type (pp
, objfile
);
2585 type1
= read_type (pp
, objfile
);
2586 type
= make_function_type (type1
, dbx_lookup_type (typenums
));
2589 case 'g': /* Prototyped function. (Sun) */
2591 /* Unresolved questions:
2593 - According to Sun's ``STABS Interface Manual'', for 'f'
2594 and 'F' symbol descriptors, a `0' in the argument type list
2595 indicates a varargs function. But it doesn't say how 'g'
2596 type descriptors represent that info. Someone with access
2597 to Sun's toolchain should try it out.
2599 - According to the comment in define_symbol (search for
2600 `process_prototype_types:'), Sun emits integer arguments as
2601 types which ref themselves --- like `void' types. Do we
2602 have to deal with that here, too? Again, someone with
2603 access to Sun's toolchain should try it out and let us
2606 const char *type_start
= (*pp
) - 1;
2607 struct type
*return_type
= read_type (pp
, objfile
);
2608 struct type
*func_type
2609 = make_function_type (return_type
, dbx_lookup_type (typenums
));
2612 struct type_list
*next
;
2616 while (**pp
&& **pp
!= '#')
2618 struct type
*arg_type
= read_type (pp
, objfile
);
2619 struct type_list
*new = alloca (sizeof (*new));
2620 new->type
= arg_type
;
2621 new->next
= arg_types
;
2629 static struct complaint msg
= {
2630 "Prototyped function type didn't end arguments with `#':\n%s",
2633 complain (&msg
, type_start
);
2636 /* If there is just one argument whose type is `void', then
2637 that's just an empty argument list. */
2639 && ! arg_types
->next
2640 && TYPE_CODE (arg_types
->type
) == TYPE_CODE_VOID
)
2643 TYPE_FIELDS (func_type
)
2644 = (struct field
*) TYPE_ALLOC (func_type
,
2645 num_args
* sizeof (struct field
));
2646 memset (TYPE_FIELDS (func_type
), 0, num_args
* sizeof (struct field
));
2649 struct type_list
*t
;
2651 /* We stuck each argument type onto the front of the list
2652 when we read it, so the list is reversed. Build the
2653 fields array right-to-left. */
2654 for (t
= arg_types
, i
= num_args
- 1; t
; t
= t
->next
, i
--)
2655 TYPE_FIELD_TYPE (func_type
, i
) = t
->type
;
2657 TYPE_NFIELDS (func_type
) = num_args
;
2658 TYPE_FLAGS (func_type
) |= TYPE_FLAG_PROTOTYPED
;
2664 case 'k': /* Const qualifier on some type (Sun) */
2665 case 'c': /* Const qualifier on some type (OS9000) */
2666 /* Because 'c' means other things to AIX and 'k' is perfectly good,
2667 only accept 'c' in the os9k_stabs case. */
2668 if (type_descriptor
== 'c' && !os9k_stabs
)
2669 return error_type (pp
, objfile
);
2670 type
= read_type (pp
, objfile
);
2671 type
= make_cv_type (1, TYPE_VOLATILE (type
), type
,
2672 dbx_lookup_type (typenums
));
2675 case 'B': /* Volatile qual on some type (Sun) */
2676 case 'i': /* Volatile qual on some type (OS9000) */
2677 /* Because 'i' means other things to AIX and 'B' is perfectly good,
2678 only accept 'i' in the os9k_stabs case. */
2679 if (type_descriptor
== 'i' && !os9k_stabs
)
2680 return error_type (pp
, objfile
);
2681 type
= read_type (pp
, objfile
);
2682 type
= make_cv_type (TYPE_CONST (type
), 1, type
,
2683 dbx_lookup_type (typenums
));
2687 if (isdigit (**pp
) || **pp
== '(' || **pp
== '-')
2688 { /* Member (class & variable) type */
2689 /* FIXME -- we should be doing smash_to_XXX types here. */
2691 struct type
*domain
= read_type (pp
, objfile
);
2692 struct type
*memtype
;
2695 /* Invalid member type data format. */
2696 return error_type (pp
, objfile
);
2699 memtype
= read_type (pp
, objfile
);
2700 type
= dbx_alloc_type (typenums
, objfile
);
2701 smash_to_member_type (type
, domain
, memtype
);
2704 /* type attribute */
2707 /* Skip to the semicolon. */
2708 while (**pp
!= ';' && **pp
!= '\0')
2711 return error_type (pp
, objfile
);
2713 ++ * pp
; /* Skip the semicolon. */
2718 type_size
= atoi (attr
+ 1);
2728 /* Ignore unrecognized type attributes, so future compilers
2729 can invent new ones. */
2737 case '#': /* Method (class & fn) type */
2738 if ((*pp
)[0] == '#')
2740 /* We'll get the parameter types from the name. */
2741 struct type
*return_type
;
2744 return_type
= read_type (pp
, objfile
);
2745 if (*(*pp
)++ != ';')
2746 complain (&invalid_member_complaint
, symnum
);
2747 type
= allocate_stub_method (return_type
);
2748 if (typenums
[0] != -1)
2749 *dbx_lookup_type (typenums
) = type
;
2753 struct type
*domain
= read_type (pp
, objfile
);
2754 struct type
*return_type
;
2758 /* Invalid member type data format. */
2759 return error_type (pp
, objfile
);
2763 return_type
= read_type (pp
, objfile
);
2764 args
= read_args (pp
, ';', objfile
);
2765 type
= dbx_alloc_type (typenums
, objfile
);
2766 smash_to_method_type (type
, domain
, return_type
, args
);
2770 case 'r': /* Range type */
2771 type
= read_range_type (pp
, typenums
, objfile
);
2772 if (typenums
[0] != -1)
2773 *dbx_lookup_type (typenums
) = type
;
2778 /* Const and volatile qualified type. */
2779 type
= read_type (pp
, objfile
);
2782 /* Sun ACC builtin int type */
2783 type
= read_sun_builtin_type (pp
, typenums
, objfile
);
2784 if (typenums
[0] != -1)
2785 *dbx_lookup_type (typenums
) = type
;
2789 case 'R': /* Sun ACC builtin float type */
2790 type
= read_sun_floating_type (pp
, typenums
, objfile
);
2791 if (typenums
[0] != -1)
2792 *dbx_lookup_type (typenums
) = type
;
2795 case 'e': /* Enumeration type */
2796 type
= dbx_alloc_type (typenums
, objfile
);
2797 type
= read_enum_type (pp
, type
, objfile
);
2798 if (typenums
[0] != -1)
2799 *dbx_lookup_type (typenums
) = type
;
2802 case 's': /* Struct type */
2803 case 'u': /* Union type */
2804 type
= dbx_alloc_type (typenums
, objfile
);
2805 switch (type_descriptor
)
2808 TYPE_CODE (type
) = TYPE_CODE_STRUCT
;
2811 TYPE_CODE (type
) = TYPE_CODE_UNION
;
2814 type
= read_struct_type (pp
, type
, objfile
);
2817 case 'a': /* Array type */
2819 return error_type (pp
, objfile
);
2822 type
= dbx_alloc_type (typenums
, objfile
);
2823 type
= read_array_type (pp
, type
, objfile
);
2825 TYPE_CODE (type
) = TYPE_CODE_STRING
;
2829 type1
= read_type (pp
, objfile
);
2830 type
= create_set_type ((struct type
*) NULL
, type1
);
2832 TYPE_CODE (type
) = TYPE_CODE_BITSTRING
;
2833 if (typenums
[0] != -1)
2834 *dbx_lookup_type (typenums
) = type
;
2838 --*pp
; /* Go back to the symbol in error */
2839 /* Particularly important if it was \0! */
2840 return error_type (pp
, objfile
);
2845 warning ("GDB internal error, type is NULL in stabsread.c\n");
2846 return error_type (pp
, objfile
);
2849 /* Size specified in a type attribute overrides any other size. */
2850 if (type_size
!= -1)
2851 TYPE_LENGTH (type
) = (type_size
+ TARGET_CHAR_BIT
- 1) / TARGET_CHAR_BIT
;
2856 /* RS/6000 xlc/dbx combination uses a set of builtin types, starting from -1.
2857 Return the proper type node for a given builtin type number. */
2859 static struct type
*
2860 rs6000_builtin_type (int typenum
)
2862 /* We recognize types numbered from -NUMBER_RECOGNIZED to -1. */
2863 #define NUMBER_RECOGNIZED 34
2864 /* This includes an empty slot for type number -0. */
2865 static struct type
*negative_types
[NUMBER_RECOGNIZED
+ 1];
2866 struct type
*rettype
= NULL
;
2868 if (typenum
>= 0 || typenum
< -NUMBER_RECOGNIZED
)
2870 complain (&rs6000_builtin_complaint
, typenum
);
2871 return builtin_type_error
;
2873 if (negative_types
[-typenum
] != NULL
)
2874 return negative_types
[-typenum
];
2876 #if TARGET_CHAR_BIT != 8
2877 #error This code wrong for TARGET_CHAR_BIT not 8
2878 /* These definitions all assume that TARGET_CHAR_BIT is 8. I think
2879 that if that ever becomes not true, the correct fix will be to
2880 make the size in the struct type to be in bits, not in units of
2887 /* The size of this and all the other types are fixed, defined
2888 by the debugging format. If there is a type called "int" which
2889 is other than 32 bits, then it should use a new negative type
2890 number (or avoid negative type numbers for that case).
2891 See stabs.texinfo. */
2892 rettype
= init_type (TYPE_CODE_INT
, 4, 0, "int", NULL
);
2895 rettype
= init_type (TYPE_CODE_INT
, 1, 0, "char", NULL
);
2898 rettype
= init_type (TYPE_CODE_INT
, 2, 0, "short", NULL
);
2901 rettype
= init_type (TYPE_CODE_INT
, 4, 0, "long", NULL
);
2904 rettype
= init_type (TYPE_CODE_INT
, 1, TYPE_FLAG_UNSIGNED
,
2905 "unsigned char", NULL
);
2908 rettype
= init_type (TYPE_CODE_INT
, 1, 0, "signed char", NULL
);
2911 rettype
= init_type (TYPE_CODE_INT
, 2, TYPE_FLAG_UNSIGNED
,
2912 "unsigned short", NULL
);
2915 rettype
= init_type (TYPE_CODE_INT
, 4, TYPE_FLAG_UNSIGNED
,
2916 "unsigned int", NULL
);
2919 rettype
= init_type (TYPE_CODE_INT
, 4, TYPE_FLAG_UNSIGNED
,
2922 rettype
= init_type (TYPE_CODE_INT
, 4, TYPE_FLAG_UNSIGNED
,
2923 "unsigned long", NULL
);
2926 rettype
= init_type (TYPE_CODE_VOID
, 1, 0, "void", NULL
);
2929 /* IEEE single precision (32 bit). */
2930 rettype
= init_type (TYPE_CODE_FLT
, 4, 0, "float", NULL
);
2933 /* IEEE double precision (64 bit). */
2934 rettype
= init_type (TYPE_CODE_FLT
, 8, 0, "double", NULL
);
2937 /* This is an IEEE double on the RS/6000, and different machines with
2938 different sizes for "long double" should use different negative
2939 type numbers. See stabs.texinfo. */
2940 rettype
= init_type (TYPE_CODE_FLT
, 8, 0, "long double", NULL
);
2943 rettype
= init_type (TYPE_CODE_INT
, 4, 0, "integer", NULL
);
2946 rettype
= init_type (TYPE_CODE_BOOL
, 4, TYPE_FLAG_UNSIGNED
,
2950 rettype
= init_type (TYPE_CODE_FLT
, 4, 0, "short real", NULL
);
2953 rettype
= init_type (TYPE_CODE_FLT
, 8, 0, "real", NULL
);
2956 rettype
= init_type (TYPE_CODE_ERROR
, 0, 0, "stringptr", NULL
);
2959 rettype
= init_type (TYPE_CODE_CHAR
, 1, TYPE_FLAG_UNSIGNED
,
2963 rettype
= init_type (TYPE_CODE_BOOL
, 1, TYPE_FLAG_UNSIGNED
,
2967 rettype
= init_type (TYPE_CODE_BOOL
, 2, TYPE_FLAG_UNSIGNED
,
2971 rettype
= init_type (TYPE_CODE_BOOL
, 4, TYPE_FLAG_UNSIGNED
,
2975 rettype
= init_type (TYPE_CODE_BOOL
, 4, TYPE_FLAG_UNSIGNED
,
2979 /* Complex type consisting of two IEEE single precision values. */
2980 rettype
= init_type (TYPE_CODE_COMPLEX
, 8, 0, "complex", NULL
);
2981 TYPE_TARGET_TYPE (rettype
) = init_type (TYPE_CODE_FLT
, 4, 0, "float",
2985 /* Complex type consisting of two IEEE double precision values. */
2986 rettype
= init_type (TYPE_CODE_COMPLEX
, 16, 0, "double complex", NULL
);
2987 TYPE_TARGET_TYPE (rettype
) = init_type (TYPE_CODE_FLT
, 8, 0, "double",
2991 rettype
= init_type (TYPE_CODE_INT
, 1, 0, "integer*1", NULL
);
2994 rettype
= init_type (TYPE_CODE_INT
, 2, 0, "integer*2", NULL
);
2997 rettype
= init_type (TYPE_CODE_INT
, 4, 0, "integer*4", NULL
);
3000 rettype
= init_type (TYPE_CODE_CHAR
, 2, 0, "wchar", NULL
);
3003 rettype
= init_type (TYPE_CODE_INT
, 8, 0, "long long", NULL
);
3006 rettype
= init_type (TYPE_CODE_INT
, 8, TYPE_FLAG_UNSIGNED
,
3007 "unsigned long long", NULL
);
3010 rettype
= init_type (TYPE_CODE_INT
, 8, TYPE_FLAG_UNSIGNED
,
3014 rettype
= init_type (TYPE_CODE_INT
, 8, 0, "integer*8", NULL
);
3017 negative_types
[-typenum
] = rettype
;
3021 /* This page contains subroutines of read_type. */
3023 /* Read member function stabs info for C++ classes. The form of each member
3026 NAME :: TYPENUM[=type definition] ARGS : PHYSNAME ;
3028 An example with two member functions is:
3030 afunc1::20=##15;:i;2A.;afunc2::20:i;2A.;
3032 For the case of overloaded operators, the format is op$::*.funcs, where
3033 $ is the CPLUS_MARKER (usually '$'), `*' holds the place for an operator
3034 name (such as `+=') and `.' marks the end of the operator name.
3036 Returns 1 for success, 0 for failure. */
3039 read_member_functions (struct field_info
*fip
, char **pp
, struct type
*type
,
3040 struct objfile
*objfile
)
3044 /* Total number of member functions defined in this class. If the class
3045 defines two `f' functions, and one `g' function, then this will have
3047 int total_length
= 0;
3051 struct next_fnfield
*next
;
3052 struct fn_field fn_field
;
3055 struct type
*look_ahead_type
;
3056 struct next_fnfieldlist
*new_fnlist
;
3057 struct next_fnfield
*new_sublist
;
3061 /* Process each list until we find something that is not a member function
3062 or find the end of the functions. */
3066 /* We should be positioned at the start of the function name.
3067 Scan forward to find the first ':' and if it is not the
3068 first of a "::" delimiter, then this is not a member function. */
3080 look_ahead_type
= NULL
;
3083 new_fnlist
= (struct next_fnfieldlist
*)
3084 xmalloc (sizeof (struct next_fnfieldlist
));
3085 make_cleanup (xfree
, new_fnlist
);
3086 memset (new_fnlist
, 0, sizeof (struct next_fnfieldlist
));
3088 if ((*pp
)[0] == 'o' && (*pp
)[1] == 'p' && is_cplus_marker ((*pp
)[2]))
3090 /* This is a completely wierd case. In order to stuff in the
3091 names that might contain colons (the usual name delimiter),
3092 Mike Tiemann defined a different name format which is
3093 signalled if the identifier is "op$". In that case, the
3094 format is "op$::XXXX." where XXXX is the name. This is
3095 used for names like "+" or "=". YUUUUUUUK! FIXME! */
3096 /* This lets the user type "break operator+".
3097 We could just put in "+" as the name, but that wouldn't
3099 static char opname
[32] =
3100 {'o', 'p', CPLUS_MARKER
};
3101 char *o
= opname
+ 3;
3103 /* Skip past '::'. */
3106 STABS_CONTINUE (pp
, objfile
);
3112 main_fn_name
= savestring (opname
, o
- opname
);
3118 main_fn_name
= savestring (*pp
, p
- *pp
);
3119 /* Skip past '::'. */
3122 new_fnlist
->fn_fieldlist
.name
= main_fn_name
;
3127 (struct next_fnfield
*) xmalloc (sizeof (struct next_fnfield
));
3128 make_cleanup (xfree
, new_sublist
);
3129 memset (new_sublist
, 0, sizeof (struct next_fnfield
));
3131 /* Check for and handle cretinous dbx symbol name continuation! */
3132 if (look_ahead_type
== NULL
)
3135 STABS_CONTINUE (pp
, objfile
);
3137 new_sublist
->fn_field
.type
= read_type (pp
, objfile
);
3140 /* Invalid symtab info for member function. */
3146 /* g++ version 1 kludge */
3147 new_sublist
->fn_field
.type
= look_ahead_type
;
3148 look_ahead_type
= NULL
;
3158 /* If this is just a stub, then we don't have the real name here. */
3160 if (TYPE_STUB (new_sublist
->fn_field
.type
))
3162 if (!TYPE_DOMAIN_TYPE (new_sublist
->fn_field
.type
))
3163 TYPE_DOMAIN_TYPE (new_sublist
->fn_field
.type
) = type
;
3164 new_sublist
->fn_field
.is_stub
= 1;
3166 new_sublist
->fn_field
.physname
= savestring (*pp
, p
- *pp
);
3169 /* Set this member function's visibility fields. */
3172 case VISIBILITY_PRIVATE
:
3173 new_sublist
->fn_field
.is_private
= 1;
3175 case VISIBILITY_PROTECTED
:
3176 new_sublist
->fn_field
.is_protected
= 1;
3180 STABS_CONTINUE (pp
, objfile
);
3183 case 'A': /* Normal functions. */
3184 new_sublist
->fn_field
.is_const
= 0;
3185 new_sublist
->fn_field
.is_volatile
= 0;
3188 case 'B': /* `const' member functions. */
3189 new_sublist
->fn_field
.is_const
= 1;
3190 new_sublist
->fn_field
.is_volatile
= 0;
3193 case 'C': /* `volatile' member function. */
3194 new_sublist
->fn_field
.is_const
= 0;
3195 new_sublist
->fn_field
.is_volatile
= 1;
3198 case 'D': /* `const volatile' member function. */
3199 new_sublist
->fn_field
.is_const
= 1;
3200 new_sublist
->fn_field
.is_volatile
= 1;
3203 case '*': /* File compiled with g++ version 1 -- no info */
3208 complain (&const_vol_complaint
, **pp
);
3217 /* virtual member function, followed by index.
3218 The sign bit is set to distinguish pointers-to-methods
3219 from virtual function indicies. Since the array is
3220 in words, the quantity must be shifted left by 1
3221 on 16 bit machine, and by 2 on 32 bit machine, forcing
3222 the sign bit out, and usable as a valid index into
3223 the array. Remove the sign bit here. */
3224 new_sublist
->fn_field
.voffset
=
3225 (0x7fffffff & read_huge_number (pp
, ';', &nbits
)) + 2;
3229 STABS_CONTINUE (pp
, objfile
);
3230 if (**pp
== ';' || **pp
== '\0')
3232 /* Must be g++ version 1. */
3233 new_sublist
->fn_field
.fcontext
= 0;
3237 /* Figure out from whence this virtual function came.
3238 It may belong to virtual function table of
3239 one of its baseclasses. */
3240 look_ahead_type
= read_type (pp
, objfile
);
3243 /* g++ version 1 overloaded methods. */
3247 new_sublist
->fn_field
.fcontext
= look_ahead_type
;
3256 look_ahead_type
= NULL
;
3262 /* static member function. */
3264 int slen
= strlen (main_fn_name
);
3266 new_sublist
->fn_field
.voffset
= VOFFSET_STATIC
;
3268 /* For static member functions, we can't tell if they
3269 are stubbed, as they are put out as functions, and not as
3271 GCC v2 emits the fully mangled name if
3272 dbxout.c:flag_minimal_debug is not set, so we have to
3273 detect a fully mangled physname here and set is_stub
3274 accordingly. Fully mangled physnames in v2 start with
3275 the member function name, followed by two underscores.
3276 GCC v3 currently always emits stubbed member functions,
3277 but with fully mangled physnames, which start with _Z. */
3278 if (!(strncmp (new_sublist
->fn_field
.physname
,
3279 main_fn_name
, slen
) == 0
3280 && new_sublist
->fn_field
.physname
[slen
] == '_'
3281 && new_sublist
->fn_field
.physname
[slen
+ 1] == '_'))
3283 new_sublist
->fn_field
.is_stub
= 1;
3290 complain (&member_fn_complaint
, (*pp
)[-1]);
3291 /* Fall through into normal member function. */
3294 /* normal member function. */
3295 new_sublist
->fn_field
.voffset
= 0;
3296 new_sublist
->fn_field
.fcontext
= 0;
3300 new_sublist
->next
= sublist
;
3301 sublist
= new_sublist
;
3303 STABS_CONTINUE (pp
, objfile
);
3305 while (**pp
!= ';' && **pp
!= '\0');
3308 STABS_CONTINUE (pp
, objfile
);
3310 /* Skip GCC 3.X member functions which are duplicates of the callable
3311 constructor/destructor. */
3312 if (strcmp (main_fn_name
, "__base_ctor") == 0
3313 || strcmp (main_fn_name
, "__base_dtor") == 0
3314 || strcmp (main_fn_name
, "__deleting_dtor") == 0)
3316 xfree (main_fn_name
);
3320 new_fnlist
->fn_fieldlist
.fn_fields
= (struct fn_field
*)
3321 obstack_alloc (&objfile
->type_obstack
,
3322 sizeof (struct fn_field
) * length
);
3323 memset (new_fnlist
->fn_fieldlist
.fn_fields
, 0,
3324 sizeof (struct fn_field
) * length
);
3325 for (i
= length
; (i
--, sublist
); sublist
= sublist
->next
)
3327 new_fnlist
->fn_fieldlist
.fn_fields
[i
] = sublist
->fn_field
;
3330 new_fnlist
->fn_fieldlist
.length
= length
;
3331 new_fnlist
->next
= fip
->fnlist
;
3332 fip
->fnlist
= new_fnlist
;
3334 total_length
+= length
;
3340 ALLOCATE_CPLUS_STRUCT_TYPE (type
);
3341 TYPE_FN_FIELDLISTS (type
) = (struct fn_fieldlist
*)
3342 TYPE_ALLOC (type
, sizeof (struct fn_fieldlist
) * nfn_fields
);
3343 memset (TYPE_FN_FIELDLISTS (type
), 0,
3344 sizeof (struct fn_fieldlist
) * nfn_fields
);
3345 TYPE_NFN_FIELDS (type
) = nfn_fields
;
3346 TYPE_NFN_FIELDS_TOTAL (type
) = total_length
;
3352 /* Special GNU C++ name.
3354 Returns 1 for success, 0 for failure. "failure" means that we can't
3355 keep parsing and it's time for error_type(). */
3358 read_cpp_abbrev (struct field_info
*fip
, char **pp
, struct type
*type
,
3359 struct objfile
*objfile
)
3364 struct type
*context
;
3374 /* At this point, *pp points to something like "22:23=*22...",
3375 where the type number before the ':' is the "context" and
3376 everything after is a regular type definition. Lookup the
3377 type, find it's name, and construct the field name. */
3379 context
= read_type (pp
, objfile
);
3383 case 'f': /* $vf -- a virtual function table pointer */
3384 name
= type_name_no_tag (context
);
3389 fip
->list
->field
.name
=
3390 obconcat (&objfile
->type_obstack
, vptr_name
, name
, "");
3393 case 'b': /* $vb -- a virtual bsomethingorother */
3394 name
= type_name_no_tag (context
);
3397 complain (&invalid_cpp_type_complaint
, symnum
);
3400 fip
->list
->field
.name
=
3401 obconcat (&objfile
->type_obstack
, vb_name
, name
, "");
3405 complain (&invalid_cpp_abbrev_complaint
, *pp
);
3406 fip
->list
->field
.name
=
3407 obconcat (&objfile
->type_obstack
,
3408 "INVALID_CPLUSPLUS_ABBREV", "", "");
3412 /* At this point, *pp points to the ':'. Skip it and read the
3418 complain (&invalid_cpp_abbrev_complaint
, *pp
);
3421 fip
->list
->field
.type
= read_type (pp
, objfile
);
3423 (*pp
)++; /* Skip the comma. */
3429 FIELD_BITPOS (fip
->list
->field
) = read_huge_number (pp
, ';', &nbits
);
3433 /* This field is unpacked. */
3434 FIELD_BITSIZE (fip
->list
->field
) = 0;
3435 fip
->list
->visibility
= VISIBILITY_PRIVATE
;
3439 complain (&invalid_cpp_abbrev_complaint
, *pp
);
3440 /* We have no idea what syntax an unrecognized abbrev would have, so
3441 better return 0. If we returned 1, we would need to at least advance
3442 *pp to avoid an infinite loop. */
3449 read_one_struct_field (struct field_info
*fip
, char **pp
, char *p
,
3450 struct type
*type
, struct objfile
*objfile
)
3452 /* The following is code to work around cfront generated stabs.
3453 The stabs contains full mangled name for each field.
3454 We try to demangle the name and extract the field name out of it.
3456 if (ARM_DEMANGLING
&& current_subfile
->language
== language_cplus
)
3462 dem
= cplus_demangle (*pp
, DMGL_ANSI
| DMGL_PARAMS
);
3465 dem_p
= strrchr (dem
, ':');
3466 if (dem_p
!= 0 && *(dem_p
- 1) == ':')
3468 FIELD_NAME (fip
->list
->field
) =
3469 obsavestring (dem_p
, strlen (dem_p
), &objfile
->type_obstack
);
3473 FIELD_NAME (fip
->list
->field
) =
3474 obsavestring (*pp
, p
- *pp
, &objfile
->type_obstack
);
3478 /* end of code for cfront work around */
3481 fip
->list
->field
.name
=
3482 obsavestring (*pp
, p
- *pp
, &objfile
->type_obstack
);
3485 /* This means we have a visibility for a field coming. */
3489 fip
->list
->visibility
= *(*pp
)++;
3493 /* normal dbx-style format, no explicit visibility */
3494 fip
->list
->visibility
= VISIBILITY_PUBLIC
;
3497 fip
->list
->field
.type
= read_type (pp
, objfile
);
3502 /* Possible future hook for nested types. */
3505 fip
->list
->field
.bitpos
= (long) -2; /* nested type */
3515 /* Static class member. */
3516 SET_FIELD_PHYSNAME (fip
->list
->field
, savestring (*pp
, p
- *pp
));
3520 else if (**pp
!= ',')
3522 /* Bad structure-type format. */
3523 complain (&stabs_general_complaint
, "bad structure-type format");
3527 (*pp
)++; /* Skip the comma. */
3531 FIELD_BITPOS (fip
->list
->field
) = read_huge_number (pp
, ',', &nbits
);
3534 complain (&stabs_general_complaint
, "bad structure-type format");
3537 FIELD_BITSIZE (fip
->list
->field
) = read_huge_number (pp
, ';', &nbits
);
3540 complain (&stabs_general_complaint
, "bad structure-type format");
3545 if (FIELD_BITPOS (fip
->list
->field
) == 0
3546 && FIELD_BITSIZE (fip
->list
->field
) == 0)
3548 /* This can happen in two cases: (1) at least for gcc 2.4.5 or so,
3549 it is a field which has been optimized out. The correct stab for
3550 this case is to use VISIBILITY_IGNORE, but that is a recent
3551 invention. (2) It is a 0-size array. For example
3552 union { int num; char str[0]; } foo. Printing "<no value>" for
3553 str in "p foo" is OK, since foo.str (and thus foo.str[3])
3554 will continue to work, and a 0-size array as a whole doesn't
3555 have any contents to print.
3557 I suspect this probably could also happen with gcc -gstabs (not
3558 -gstabs+) for static fields, and perhaps other C++ extensions.
3559 Hopefully few people use -gstabs with gdb, since it is intended
3560 for dbx compatibility. */
3562 /* Ignore this field. */
3563 fip
->list
->visibility
= VISIBILITY_IGNORE
;
3567 /* Detect an unpacked field and mark it as such.
3568 dbx gives a bit size for all fields.
3569 Note that forward refs cannot be packed,
3570 and treat enums as if they had the width of ints. */
3572 struct type
*field_type
= check_typedef (FIELD_TYPE (fip
->list
->field
));
3574 if (TYPE_CODE (field_type
) != TYPE_CODE_INT
3575 && TYPE_CODE (field_type
) != TYPE_CODE_RANGE
3576 && TYPE_CODE (field_type
) != TYPE_CODE_BOOL
3577 && TYPE_CODE (field_type
) != TYPE_CODE_ENUM
)
3579 FIELD_BITSIZE (fip
->list
->field
) = 0;
3581 if ((FIELD_BITSIZE (fip
->list
->field
)
3582 == TARGET_CHAR_BIT
* TYPE_LENGTH (field_type
)
3583 || (TYPE_CODE (field_type
) == TYPE_CODE_ENUM
3584 && FIELD_BITSIZE (fip
->list
->field
) == TARGET_INT_BIT
)
3587 FIELD_BITPOS (fip
->list
->field
) % 8 == 0)
3589 FIELD_BITSIZE (fip
->list
->field
) = 0;
3595 /* Read struct or class data fields. They have the form:
3597 NAME : [VISIBILITY] TYPENUM , BITPOS , BITSIZE ;
3599 At the end, we see a semicolon instead of a field.
3601 In C++, this may wind up being NAME:?TYPENUM:PHYSNAME; for
3604 The optional VISIBILITY is one of:
3606 '/0' (VISIBILITY_PRIVATE)
3607 '/1' (VISIBILITY_PROTECTED)
3608 '/2' (VISIBILITY_PUBLIC)
3609 '/9' (VISIBILITY_IGNORE)
3611 or nothing, for C style fields with public visibility.
3613 Returns 1 for success, 0 for failure. */
3616 read_struct_fields (struct field_info
*fip
, char **pp
, struct type
*type
,
3617 struct objfile
*objfile
)
3620 struct nextfield
*new;
3622 /* We better set p right now, in case there are no fields at all... */
3626 /* Read each data member type until we find the terminating ';' at the end of
3627 the data member list, or break for some other reason such as finding the
3628 start of the member function list. */
3629 /* Stab string for structure/union does not end with two ';' in
3630 SUN C compiler 5.3 i.e. F6U2, hence check for end of string. */
3632 while (**pp
!= ';' && **pp
!= '\0')
3634 if (os9k_stabs
&& **pp
== ',')
3636 STABS_CONTINUE (pp
, objfile
);
3637 /* Get space to record the next field's data. */
3638 new = (struct nextfield
*) xmalloc (sizeof (struct nextfield
));
3639 make_cleanup (xfree
, new);
3640 memset (new, 0, sizeof (struct nextfield
));
3641 new->next
= fip
->list
;
3644 /* Get the field name. */
3647 /* If is starts with CPLUS_MARKER it is a special abbreviation,
3648 unless the CPLUS_MARKER is followed by an underscore, in
3649 which case it is just the name of an anonymous type, which we
3650 should handle like any other type name. */
3652 if (is_cplus_marker (p
[0]) && p
[1] != '_')
3654 if (!read_cpp_abbrev (fip
, pp
, type
, objfile
))
3659 /* Look for the ':' that separates the field name from the field
3660 values. Data members are delimited by a single ':', while member
3661 functions are delimited by a pair of ':'s. When we hit the member
3662 functions (if any), terminate scan loop and return. */
3664 while (*p
!= ':' && *p
!= '\0')
3671 /* Check to see if we have hit the member functions yet. */
3676 read_one_struct_field (fip
, pp
, p
, type
, objfile
);
3678 if (p
[0] == ':' && p
[1] == ':')
3680 /* chill the list of fields: the last entry (at the head) is a
3681 partially constructed entry which we now scrub. */
3682 fip
->list
= fip
->list
->next
;
3687 /* The stabs for C++ derived classes contain baseclass information which
3688 is marked by a '!' character after the total size. This function is
3689 called when we encounter the baseclass marker, and slurps up all the
3690 baseclass information.
3692 Immediately following the '!' marker is the number of base classes that
3693 the class is derived from, followed by information for each base class.
3694 For each base class, there are two visibility specifiers, a bit offset
3695 to the base class information within the derived class, a reference to
3696 the type for the base class, and a terminating semicolon.
3698 A typical example, with two base classes, would be "!2,020,19;0264,21;".
3700 Baseclass information marker __________________|| | | | | | |
3701 Number of baseclasses __________________________| | | | | | |
3702 Visibility specifiers (2) ________________________| | | | | |
3703 Offset in bits from start of class _________________| | | | |
3704 Type number for base class ___________________________| | | |
3705 Visibility specifiers (2) _______________________________| | |
3706 Offset in bits from start of class ________________________| |
3707 Type number of base class ____________________________________|
3709 Return 1 for success, 0 for (error-type-inducing) failure. */
3715 read_baseclasses (struct field_info
*fip
, char **pp
, struct type
*type
,
3716 struct objfile
*objfile
)
3719 struct nextfield
*new;
3727 /* Skip the '!' baseclass information marker. */
3731 ALLOCATE_CPLUS_STRUCT_TYPE (type
);
3734 TYPE_N_BASECLASSES (type
) = read_huge_number (pp
, ',', &nbits
);
3740 /* Some stupid compilers have trouble with the following, so break
3741 it up into simpler expressions. */
3742 TYPE_FIELD_VIRTUAL_BITS (type
) = (B_TYPE
*)
3743 TYPE_ALLOC (type
, B_BYTES (TYPE_N_BASECLASSES (type
)));
3746 int num_bytes
= B_BYTES (TYPE_N_BASECLASSES (type
));
3749 pointer
= (char *) TYPE_ALLOC (type
, num_bytes
);
3750 TYPE_FIELD_VIRTUAL_BITS (type
) = (B_TYPE
*) pointer
;
3754 B_CLRALL (TYPE_FIELD_VIRTUAL_BITS (type
), TYPE_N_BASECLASSES (type
));
3756 for (i
= 0; i
< TYPE_N_BASECLASSES (type
); i
++)
3758 new = (struct nextfield
*) xmalloc (sizeof (struct nextfield
));
3759 make_cleanup (xfree
, new);
3760 memset (new, 0, sizeof (struct nextfield
));
3761 new->next
= fip
->list
;
3763 FIELD_BITSIZE (new->field
) = 0; /* this should be an unpacked field! */
3765 STABS_CONTINUE (pp
, objfile
);
3769 /* Nothing to do. */
3772 SET_TYPE_FIELD_VIRTUAL (type
, i
);
3775 /* Unknown character. Complain and treat it as non-virtual. */
3777 static struct complaint msg
=
3779 "Unknown virtual character `%c' for baseclass", 0, 0};
3780 complain (&msg
, **pp
);
3785 new->visibility
= *(*pp
)++;
3786 switch (new->visibility
)
3788 case VISIBILITY_PRIVATE
:
3789 case VISIBILITY_PROTECTED
:
3790 case VISIBILITY_PUBLIC
:
3793 /* Bad visibility format. Complain and treat it as
3796 static struct complaint msg
=
3798 "Unknown visibility `%c' for baseclass", 0, 0
3800 complain (&msg
, new->visibility
);
3801 new->visibility
= VISIBILITY_PUBLIC
;
3808 /* The remaining value is the bit offset of the portion of the object
3809 corresponding to this baseclass. Always zero in the absence of
3810 multiple inheritance. */
3812 FIELD_BITPOS (new->field
) = read_huge_number (pp
, ',', &nbits
);
3817 /* The last piece of baseclass information is the type of the
3818 base class. Read it, and remember it's type name as this
3821 new->field
.type
= read_type (pp
, objfile
);
3822 new->field
.name
= type_name_no_tag (new->field
.type
);
3824 /* skip trailing ';' and bump count of number of fields seen */
3833 /* The tail end of stabs for C++ classes that contain a virtual function
3834 pointer contains a tilde, a %, and a type number.
3835 The type number refers to the base class (possibly this class itself) which
3836 contains the vtable pointer for the current class.
3838 This function is called when we have parsed all the method declarations,
3839 so we can look for the vptr base class info. */
3842 read_tilde_fields (struct field_info
*fip
, char **pp
, struct type
*type
,
3843 struct objfile
*objfile
)
3847 STABS_CONTINUE (pp
, objfile
);
3849 /* If we are positioned at a ';', then skip it. */
3859 if (**pp
== '=' || **pp
== '+' || **pp
== '-')
3861 /* Obsolete flags that used to indicate the presence
3862 of constructors and/or destructors. */
3866 /* Read either a '%' or the final ';'. */
3867 if (*(*pp
)++ == '%')
3869 /* The next number is the type number of the base class
3870 (possibly our own class) which supplies the vtable for
3871 this class. Parse it out, and search that class to find
3872 its vtable pointer, and install those into TYPE_VPTR_BASETYPE
3873 and TYPE_VPTR_FIELDNO. */
3878 t
= read_type (pp
, objfile
);
3880 while (*p
!= '\0' && *p
!= ';')
3886 /* Premature end of symbol. */
3890 TYPE_VPTR_BASETYPE (type
) = t
;
3891 if (type
== t
) /* Our own class provides vtbl ptr */
3893 for (i
= TYPE_NFIELDS (t
) - 1;
3894 i
>= TYPE_N_BASECLASSES (t
);
3897 if (!strncmp (TYPE_FIELD_NAME (t
, i
), vptr_name
,
3898 sizeof (vptr_name
) - 1))
3900 TYPE_VPTR_FIELDNO (type
) = i
;
3904 /* Virtual function table field not found. */
3905 complain (&vtbl_notfound_complaint
, TYPE_NAME (type
));
3910 TYPE_VPTR_FIELDNO (type
) = TYPE_VPTR_FIELDNO (t
);
3921 attach_fn_fields_to_type (struct field_info
*fip
, register struct type
*type
)
3925 for (n
= TYPE_NFN_FIELDS (type
);
3926 fip
->fnlist
!= NULL
;
3927 fip
->fnlist
= fip
->fnlist
->next
)
3929 --n
; /* Circumvent Sun3 compiler bug */
3930 TYPE_FN_FIELDLISTS (type
)[n
] = fip
->fnlist
->fn_fieldlist
;
3935 /* read cfront class static data.
3936 pp points to string starting with the list of static data
3937 eg: A:ZcA;1@Bpub v2@Bvirpri;__ct__1AFv func__1AFv *sfunc__1AFv ;as__1A ;;
3940 A:ZcA;;foopri__1AFv foopro__1AFv __ct__1AFv __ct__1AFRC1A foopub__1AFv ;;;
3945 read_cfront_static_fields (struct field_info
*fip
, char **pp
, struct type
*type
,
3946 struct objfile
*objfile
)
3948 struct nextfield
*new;
3951 struct symbol
*ref_static
= 0;
3953 if (**pp
== ';') /* no static data; return */
3959 /* Process each field in the list until we find the terminating ";" */
3961 /* eg: p = "as__1A ;;;" */
3962 STABS_CONTINUE (pp
, objfile
); /* handle \\ */
3963 while (**pp
!= ';' && (sname
= get_substring (pp
, ' '), sname
))
3965 ref_static
= lookup_symbol (sname
, 0, VAR_NAMESPACE
, 0, 0); /*demangled_name */
3968 static struct complaint msg
=
3970 Unable to find symbol for static data field %s\n",
3972 complain (&msg
, sname
);
3975 stype
= SYMBOL_TYPE (ref_static
);
3977 /* allocate a new fip */
3978 new = (struct nextfield
*) xmalloc (sizeof (struct nextfield
));
3979 make_cleanup (xfree
, new);
3980 memset (new, 0, sizeof (struct nextfield
));
3981 new->next
= fip
->list
;
3984 /* set visibility */
3985 /* FIXME! no way to tell visibility from stabs??? */
3986 new->visibility
= VISIBILITY_PUBLIC
;
3988 /* set field info into fip */
3989 fip
->list
->field
.type
= stype
;
3991 /* set bitpos & bitsize */
3992 SET_FIELD_PHYSNAME (fip
->list
->field
, savestring (sname
, strlen (sname
)));
3994 /* set name field */
3995 /* The following is code to work around cfront generated stabs.
3996 The stabs contains full mangled name for each field.
3997 We try to demangle the name and extract the field name out of it.
4002 dem
= cplus_demangle (sname
, DMGL_ANSI
| DMGL_PARAMS
);
4005 dem_p
= strrchr (dem
, ':');
4006 if (dem_p
!= 0 && *(dem_p
- 1) == ':')
4008 fip
->list
->field
.name
=
4009 obsavestring (dem_p
, strlen (dem_p
), &objfile
->type_obstack
);
4013 fip
->list
->field
.name
=
4014 obsavestring (sname
, strlen (sname
), &objfile
->type_obstack
);
4016 } /* end of code for cfront work around */
4017 } /* loop again for next static field */
4021 /* Copy structure fields to fip so attach_fields_to_type will work.
4022 type has already been created with the initial instance data fields.
4023 Now we want to be able to add the other members to the class,
4024 so we want to add them back to the fip and reattach them again
4025 once we have collected all the class members. */
4028 copy_cfront_struct_fields (struct field_info
*fip
, struct type
*type
,
4029 struct objfile
*objfile
)
4031 int nfields
= TYPE_NFIELDS (type
);
4033 struct nextfield
*new;
4035 /* Copy the fields into the list of fips and reset the types
4036 to remove the old fields */
4038 for (i
= 0; i
< nfields
; i
++)
4040 /* allocate a new fip */
4041 new = (struct nextfield
*) xmalloc (sizeof (struct nextfield
));
4042 make_cleanup (xfree
, new);
4043 memset (new, 0, sizeof (struct nextfield
));
4044 new->next
= fip
->list
;
4047 /* copy field info into fip */
4048 new->field
= TYPE_FIELD (type
, i
);
4049 /* set visibility */
4050 if (TYPE_FIELD_PROTECTED (type
, i
))
4051 new->visibility
= VISIBILITY_PROTECTED
;
4052 else if (TYPE_FIELD_PRIVATE (type
, i
))
4053 new->visibility
= VISIBILITY_PRIVATE
;
4055 new->visibility
= VISIBILITY_PUBLIC
;
4057 /* Now delete the fields from the type since we will be
4058 allocing new space once we get the rest of the fields
4059 in attach_fields_to_type.
4060 The pointer TYPE_FIELDS(type) is left dangling but should
4061 be freed later by objstack_free */
4062 TYPE_FIELDS (type
) = 0;
4063 TYPE_NFIELDS (type
) = 0;
4068 /* Create the vector of fields, and record how big it is.
4069 We need this info to record proper virtual function table information
4070 for this class's virtual functions. */
4073 attach_fields_to_type (struct field_info
*fip
, register struct type
*type
,
4074 struct objfile
*objfile
)
4076 register int nfields
= 0;
4077 register int non_public_fields
= 0;
4078 register struct nextfield
*scan
;
4080 /* Count up the number of fields that we have, as well as taking note of
4081 whether or not there are any non-public fields, which requires us to
4082 allocate and build the private_field_bits and protected_field_bits
4085 for (scan
= fip
->list
; scan
!= NULL
; scan
= scan
->next
)
4088 if (scan
->visibility
!= VISIBILITY_PUBLIC
)
4090 non_public_fields
++;
4094 /* Now we know how many fields there are, and whether or not there are any
4095 non-public fields. Record the field count, allocate space for the
4096 array of fields, and create blank visibility bitfields if necessary. */
4098 TYPE_NFIELDS (type
) = nfields
;
4099 TYPE_FIELDS (type
) = (struct field
*)
4100 TYPE_ALLOC (type
, sizeof (struct field
) * nfields
);
4101 memset (TYPE_FIELDS (type
), 0, sizeof (struct field
) * nfields
);
4103 if (non_public_fields
)
4105 ALLOCATE_CPLUS_STRUCT_TYPE (type
);
4107 TYPE_FIELD_PRIVATE_BITS (type
) =
4108 (B_TYPE
*) TYPE_ALLOC (type
, B_BYTES (nfields
));
4109 B_CLRALL (TYPE_FIELD_PRIVATE_BITS (type
), nfields
);
4111 TYPE_FIELD_PROTECTED_BITS (type
) =
4112 (B_TYPE
*) TYPE_ALLOC (type
, B_BYTES (nfields
));
4113 B_CLRALL (TYPE_FIELD_PROTECTED_BITS (type
), nfields
);
4115 TYPE_FIELD_IGNORE_BITS (type
) =
4116 (B_TYPE
*) TYPE_ALLOC (type
, B_BYTES (nfields
));
4117 B_CLRALL (TYPE_FIELD_IGNORE_BITS (type
), nfields
);
4120 /* Copy the saved-up fields into the field vector. Start from the head
4121 of the list, adding to the tail of the field array, so that they end
4122 up in the same order in the array in which they were added to the list. */
4124 while (nfields
-- > 0)
4126 TYPE_FIELD (type
, nfields
) = fip
->list
->field
;
4127 switch (fip
->list
->visibility
)
4129 case VISIBILITY_PRIVATE
:
4130 SET_TYPE_FIELD_PRIVATE (type
, nfields
);
4133 case VISIBILITY_PROTECTED
:
4134 SET_TYPE_FIELD_PROTECTED (type
, nfields
);
4137 case VISIBILITY_IGNORE
:
4138 SET_TYPE_FIELD_IGNORE (type
, nfields
);
4141 case VISIBILITY_PUBLIC
:
4145 /* Unknown visibility. Complain and treat it as public. */
4147 static struct complaint msg
=
4149 "Unknown visibility `%c' for field", 0, 0};
4150 complain (&msg
, fip
->list
->visibility
);
4154 fip
->list
= fip
->list
->next
;
4159 /* Read the description of a structure (or union type) and return an object
4160 describing the type.
4162 PP points to a character pointer that points to the next unconsumed token
4163 in the the stabs string. For example, given stabs "A:T4=s4a:1,0,32;;",
4164 *PP will point to "4a:1,0,32;;".
4166 TYPE points to an incomplete type that needs to be filled in.
4168 OBJFILE points to the current objfile from which the stabs information is
4169 being read. (Note that it is redundant in that TYPE also contains a pointer
4170 to this same objfile, so it might be a good idea to eliminate it. FIXME).
4173 static struct type
*
4174 read_struct_type (char **pp
, struct type
*type
, struct objfile
*objfile
)
4176 struct cleanup
*back_to
;
4177 struct field_info fi
;
4182 back_to
= make_cleanup (null_cleanup
, 0);
4184 INIT_CPLUS_SPECIFIC (type
);
4185 TYPE_FLAGS (type
) &= ~TYPE_FLAG_STUB
;
4187 /* First comes the total size in bytes. */
4191 TYPE_LENGTH (type
) = read_huge_number (pp
, 0, &nbits
);
4193 return error_type (pp
, objfile
);
4196 /* Now read the baseclasses, if any, read the regular C struct or C++
4197 class member fields, attach the fields to the type, read the C++
4198 member functions, attach them to the type, and then read any tilde
4199 field (baseclass specifier for the class holding the main vtable). */
4201 if (!read_baseclasses (&fi
, pp
, type
, objfile
)
4202 || !read_struct_fields (&fi
, pp
, type
, objfile
)
4203 || !attach_fields_to_type (&fi
, type
, objfile
)
4204 || !read_member_functions (&fi
, pp
, type
, objfile
)
4205 || !attach_fn_fields_to_type (&fi
, type
)
4206 || !read_tilde_fields (&fi
, pp
, type
, objfile
))
4208 type
= error_type (pp
, objfile
);
4211 /* Fix up any cv-qualified versions of this type. */
4212 finish_cv_type (type
);
4213 do_cleanups (back_to
);
4217 /* Read a definition of an array type,
4218 and create and return a suitable type object.
4219 Also creates a range type which represents the bounds of that
4222 static struct type
*
4223 read_array_type (register char **pp
, register struct type
*type
,
4224 struct objfile
*objfile
)
4226 struct type
*index_type
, *element_type
, *range_type
;
4231 /* Format of an array type:
4232 "ar<index type>;lower;upper;<array_contents_type>".
4233 OS9000: "arlower,upper;<array_contents_type>".
4235 Fortran adjustable arrays use Adigits or Tdigits for lower or upper;
4236 for these, produce a type like float[][]. */
4239 index_type
= builtin_type_int
;
4242 index_type
= read_type (pp
, objfile
);
4244 /* Improper format of array type decl. */
4245 return error_type (pp
, objfile
);
4249 if (!(**pp
>= '0' && **pp
<= '9') && **pp
!= '-')
4254 lower
= read_huge_number (pp
, os9k_stabs
? ',' : ';', &nbits
);
4256 return error_type (pp
, objfile
);
4258 if (!(**pp
>= '0' && **pp
<= '9') && **pp
!= '-')
4263 upper
= read_huge_number (pp
, ';', &nbits
);
4265 return error_type (pp
, objfile
);
4267 element_type
= read_type (pp
, objfile
);
4276 create_range_type ((struct type
*) NULL
, index_type
, lower
, upper
);
4277 type
= create_array_type (type
, element_type
, range_type
);
4283 /* Read a definition of an enumeration type,
4284 and create and return a suitable type object.
4285 Also defines the symbols that represent the values of the type. */
4287 static struct type
*
4288 read_enum_type (register char **pp
, register struct type
*type
,
4289 struct objfile
*objfile
)
4294 register struct symbol
*sym
;
4296 struct pending
**symlist
;
4297 struct pending
*osyms
, *syms
;
4300 int unsigned_enum
= 1;
4303 /* FIXME! The stabs produced by Sun CC merrily define things that ought
4304 to be file-scope, between N_FN entries, using N_LSYM. What's a mother
4305 to do? For now, force all enum values to file scope. */
4306 if (within_function
)
4307 symlist
= &local_symbols
;
4310 symlist
= &file_symbols
;
4312 o_nsyms
= osyms
? osyms
->nsyms
: 0;
4316 /* Size. Perhaps this does not have to be conditionalized on
4317 os9k_stabs (assuming the name of an enum constant can't start
4319 read_huge_number (pp
, 0, &nbits
);
4321 return error_type (pp
, objfile
);
4324 /* The aix4 compiler emits an extra field before the enum members;
4325 my guess is it's a type of some sort. Just ignore it. */
4328 /* Skip over the type. */
4332 /* Skip over the colon. */
4336 /* Read the value-names and their values.
4337 The input syntax is NAME:VALUE,NAME:VALUE, and so on.
4338 A semicolon or comma instead of a NAME means the end. */
4339 while (**pp
&& **pp
!= ';' && **pp
!= ',')
4341 STABS_CONTINUE (pp
, objfile
);
4345 name
= obsavestring (*pp
, p
- *pp
, &objfile
->symbol_obstack
);
4347 n
= read_huge_number (pp
, ',', &nbits
);
4349 return error_type (pp
, objfile
);
4351 sym
= (struct symbol
*)
4352 obstack_alloc (&objfile
->symbol_obstack
, sizeof (struct symbol
));
4353 memset (sym
, 0, sizeof (struct symbol
));
4354 SYMBOL_NAME (sym
) = name
;
4355 SYMBOL_LANGUAGE (sym
) = current_subfile
->language
;
4356 SYMBOL_CLASS (sym
) = LOC_CONST
;
4357 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
4358 SYMBOL_VALUE (sym
) = n
;
4361 add_symbol_to_list (sym
, symlist
);
4366 (*pp
)++; /* Skip the semicolon. */
4368 /* Now fill in the fields of the type-structure. */
4370 TYPE_LENGTH (type
) = TARGET_INT_BIT
/ HOST_CHAR_BIT
;
4371 TYPE_CODE (type
) = TYPE_CODE_ENUM
;
4372 TYPE_FLAGS (type
) &= ~TYPE_FLAG_STUB
;
4374 TYPE_FLAGS (type
) |= TYPE_FLAG_UNSIGNED
;
4375 TYPE_NFIELDS (type
) = nsyms
;
4376 TYPE_FIELDS (type
) = (struct field
*)
4377 TYPE_ALLOC (type
, sizeof (struct field
) * nsyms
);
4378 memset (TYPE_FIELDS (type
), 0, sizeof (struct field
) * nsyms
);
4380 /* Find the symbols for the values and put them into the type.
4381 The symbols can be found in the symlist that we put them on
4382 to cause them to be defined. osyms contains the old value
4383 of that symlist; everything up to there was defined by us. */
4384 /* Note that we preserve the order of the enum constants, so
4385 that in something like "enum {FOO, LAST_THING=FOO}" we print
4386 FOO, not LAST_THING. */
4388 for (syms
= *symlist
, n
= nsyms
- 1; syms
; syms
= syms
->next
)
4390 int last
= syms
== osyms
? o_nsyms
: 0;
4391 int j
= syms
->nsyms
;
4392 for (; --j
>= last
; --n
)
4394 struct symbol
*xsym
= syms
->symbol
[j
];
4395 SYMBOL_TYPE (xsym
) = type
;
4396 TYPE_FIELD_NAME (type
, n
) = SYMBOL_NAME (xsym
);
4397 TYPE_FIELD_BITPOS (type
, n
) = SYMBOL_VALUE (xsym
);
4398 TYPE_FIELD_BITSIZE (type
, n
) = 0;
4407 /* Sun's ACC uses a somewhat saner method for specifying the builtin
4408 typedefs in every file (for int, long, etc):
4410 type = b <signed> <width> <format type>; <offset>; <nbits>
4412 optional format type = c or b for char or boolean.
4413 offset = offset from high order bit to start bit of type.
4414 width is # bytes in object of this type, nbits is # bits in type.
4416 The width/offset stuff appears to be for small objects stored in
4417 larger ones (e.g. `shorts' in `int' registers). We ignore it for now,
4420 static struct type
*
4421 read_sun_builtin_type (char **pp
, int typenums
[2], struct objfile
*objfile
)
4426 enum type_code code
= TYPE_CODE_INT
;
4437 return error_type (pp
, objfile
);
4441 /* For some odd reason, all forms of char put a c here. This is strange
4442 because no other type has this honor. We can safely ignore this because
4443 we actually determine 'char'acterness by the number of bits specified in
4445 Boolean forms, e.g Fortran logical*X, put a b here. */
4449 else if (**pp
== 'b')
4451 code
= TYPE_CODE_BOOL
;
4455 /* The first number appears to be the number of bytes occupied
4456 by this type, except that unsigned short is 4 instead of 2.
4457 Since this information is redundant with the third number,
4458 we will ignore it. */
4459 read_huge_number (pp
, ';', &nbits
);
4461 return error_type (pp
, objfile
);
4463 /* The second number is always 0, so ignore it too. */
4464 read_huge_number (pp
, ';', &nbits
);
4466 return error_type (pp
, objfile
);
4468 /* The third number is the number of bits for this type. */
4469 type_bits
= read_huge_number (pp
, 0, &nbits
);
4471 return error_type (pp
, objfile
);
4472 /* The type *should* end with a semicolon. If it are embedded
4473 in a larger type the semicolon may be the only way to know where
4474 the type ends. If this type is at the end of the stabstring we
4475 can deal with the omitted semicolon (but we don't have to like
4476 it). Don't bother to complain(), Sun's compiler omits the semicolon
4482 return init_type (TYPE_CODE_VOID
, 1,
4483 signed_type
? 0 : TYPE_FLAG_UNSIGNED
, (char *) NULL
,
4486 return init_type (code
,
4487 type_bits
/ TARGET_CHAR_BIT
,
4488 signed_type
? 0 : TYPE_FLAG_UNSIGNED
, (char *) NULL
,
4492 static struct type
*
4493 read_sun_floating_type (char **pp
, int typenums
[2], struct objfile
*objfile
)
4498 struct type
*rettype
;
4500 /* The first number has more details about the type, for example
4502 details
= read_huge_number (pp
, ';', &nbits
);
4504 return error_type (pp
, objfile
);
4506 /* The second number is the number of bytes occupied by this type */
4507 nbytes
= read_huge_number (pp
, ';', &nbits
);
4509 return error_type (pp
, objfile
);
4511 if (details
== NF_COMPLEX
|| details
== NF_COMPLEX16
4512 || details
== NF_COMPLEX32
)
4514 rettype
= init_type (TYPE_CODE_COMPLEX
, nbytes
, 0, NULL
, objfile
);
4515 TYPE_TARGET_TYPE (rettype
)
4516 = init_type (TYPE_CODE_FLT
, nbytes
/ 2, 0, NULL
, objfile
);
4520 return init_type (TYPE_CODE_FLT
, nbytes
, 0, NULL
, objfile
);
4523 /* Read a number from the string pointed to by *PP.
4524 The value of *PP is advanced over the number.
4525 If END is nonzero, the character that ends the
4526 number must match END, or an error happens;
4527 and that character is skipped if it does match.
4528 If END is zero, *PP is left pointing to that character.
4530 If the number fits in a long, set *BITS to 0 and return the value.
4531 If not, set *BITS to be the number of bits in the number and return 0.
4533 If encounter garbage, set *BITS to -1 and return 0. */
4536 read_huge_number (char **pp
, int end
, int *bits
)
4553 /* Leading zero means octal. GCC uses this to output values larger
4554 than an int (because that would be hard in decimal). */
4562 upper_limit
= ULONG_MAX
/ radix
;
4564 upper_limit
= LONG_MAX
/ radix
;
4566 while ((c
= *p
++) >= '0' && c
< ('0' + radix
))
4568 if (n
<= upper_limit
)
4571 n
+= c
- '0'; /* FIXME this overflows anyway */
4576 /* This depends on large values being output in octal, which is
4583 /* Ignore leading zeroes. */
4587 else if (c
== '2' || c
== '3')
4613 /* Large decimal constants are an error (because it is hard to
4614 count how many bits are in them). */
4620 /* -0x7f is the same as 0x80. So deal with it by adding one to
4621 the number of bits. */
4633 /* It's *BITS which has the interesting information. */
4637 static struct type
*
4638 read_range_type (char **pp
, int typenums
[2], struct objfile
*objfile
)
4640 char *orig_pp
= *pp
;
4645 struct type
*result_type
;
4646 struct type
*index_type
= NULL
;
4648 /* First comes a type we are a subrange of.
4649 In C it is usually 0, 1 or the type being defined. */
4650 if (read_type_number (pp
, rangenums
) != 0)
4651 return error_type (pp
, objfile
);
4652 self_subrange
= (rangenums
[0] == typenums
[0] &&
4653 rangenums
[1] == typenums
[1]);
4658 index_type
= read_type (pp
, objfile
);
4661 /* A semicolon should now follow; skip it. */
4665 /* The remaining two operands are usually lower and upper bounds
4666 of the range. But in some special cases they mean something else. */
4667 n2
= read_huge_number (pp
, ';', &n2bits
);
4668 n3
= read_huge_number (pp
, ';', &n3bits
);
4670 if (n2bits
== -1 || n3bits
== -1)
4671 return error_type (pp
, objfile
);
4674 goto handle_true_range
;
4676 /* If limits are huge, must be large integral type. */
4677 if (n2bits
!= 0 || n3bits
!= 0)
4679 char got_signed
= 0;
4680 char got_unsigned
= 0;
4681 /* Number of bits in the type. */
4684 /* Range from 0 to <large number> is an unsigned large integral type. */
4685 if ((n2bits
== 0 && n2
== 0) && n3bits
!= 0)
4690 /* Range from <large number> to <large number>-1 is a large signed
4691 integral type. Take care of the case where <large number> doesn't
4692 fit in a long but <large number>-1 does. */
4693 else if ((n2bits
!= 0 && n3bits
!= 0 && n2bits
== n3bits
+ 1)
4694 || (n2bits
!= 0 && n3bits
== 0
4695 && (n2bits
== sizeof (long) * HOST_CHAR_BIT
)
4702 if (got_signed
|| got_unsigned
)
4704 return init_type (TYPE_CODE_INT
, nbits
/ TARGET_CHAR_BIT
,
4705 got_unsigned
? TYPE_FLAG_UNSIGNED
: 0, NULL
,
4709 return error_type (pp
, objfile
);
4712 /* A type defined as a subrange of itself, with bounds both 0, is void. */
4713 if (self_subrange
&& n2
== 0 && n3
== 0)
4714 return init_type (TYPE_CODE_VOID
, 1, 0, NULL
, objfile
);
4716 /* If n3 is zero and n2 is positive, we want a floating type, and n2
4717 is the width in bytes.
4719 Fortran programs appear to use this for complex types also. To
4720 distinguish between floats and complex, g77 (and others?) seem
4721 to use self-subranges for the complexes, and subranges of int for
4724 Also note that for complexes, g77 sets n2 to the size of one of
4725 the member floats, not the whole complex beast. My guess is that
4726 this was to work well with pre-COMPLEX versions of gdb. */
4728 if (n3
== 0 && n2
> 0)
4730 struct type
*float_type
4731 = init_type (TYPE_CODE_FLT
, n2
, 0, NULL
, objfile
);
4735 struct type
*complex_type
=
4736 init_type (TYPE_CODE_COMPLEX
, 2 * n2
, 0, NULL
, objfile
);
4737 TYPE_TARGET_TYPE (complex_type
) = float_type
;
4738 return complex_type
;
4744 /* If the upper bound is -1, it must really be an unsigned int. */
4746 else if (n2
== 0 && n3
== -1)
4748 /* It is unsigned int or unsigned long. */
4749 /* GCC 2.3.3 uses this for long long too, but that is just a GDB 3.5
4750 compatibility hack. */
4751 return init_type (TYPE_CODE_INT
, TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
4752 TYPE_FLAG_UNSIGNED
, NULL
, objfile
);
4755 /* Special case: char is defined (Who knows why) as a subrange of
4756 itself with range 0-127. */
4757 else if (self_subrange
&& n2
== 0 && n3
== 127)
4758 return init_type (TYPE_CODE_INT
, 1, 0, NULL
, objfile
);
4760 else if (current_symbol
&& SYMBOL_LANGUAGE (current_symbol
) == language_chill
4762 goto handle_true_range
;
4764 /* We used to do this only for subrange of self or subrange of int. */
4767 /* -1 is used for the upper bound of (4 byte) "unsigned int" and
4768 "unsigned long", and we already checked for that,
4769 so don't need to test for it here. */
4772 /* n3 actually gives the size. */
4773 return init_type (TYPE_CODE_INT
, -n3
, TYPE_FLAG_UNSIGNED
,
4776 /* Is n3 == 2**(8n)-1 for some integer n? Then it's an
4777 unsigned n-byte integer. But do require n to be a power of
4778 two; we don't want 3- and 5-byte integers flying around. */
4784 for (bytes
= 0; (bits
& 0xff) == 0xff; bytes
++)
4787 && ((bytes
- 1) & bytes
) == 0) /* "bytes is a power of two" */
4788 return init_type (TYPE_CODE_INT
, bytes
, TYPE_FLAG_UNSIGNED
, NULL
,
4792 /* I think this is for Convex "long long". Since I don't know whether
4793 Convex sets self_subrange, I also accept that particular size regardless
4794 of self_subrange. */
4795 else if (n3
== 0 && n2
< 0
4797 || n2
== -TARGET_LONG_LONG_BIT
/ TARGET_CHAR_BIT
))
4798 return init_type (TYPE_CODE_INT
, -n2
, 0, NULL
, objfile
);
4799 else if (n2
== -n3
- 1)
4802 return init_type (TYPE_CODE_INT
, 1, 0, NULL
, objfile
);
4804 return init_type (TYPE_CODE_INT
, 2, 0, NULL
, objfile
);
4805 if (n3
== 0x7fffffff)
4806 return init_type (TYPE_CODE_INT
, 4, 0, NULL
, objfile
);
4809 /* We have a real range type on our hands. Allocate space and
4810 return a real pointer. */
4814 index_type
= builtin_type_int
;
4816 index_type
= *dbx_lookup_type (rangenums
);
4817 if (index_type
== NULL
)
4819 /* Does this actually ever happen? Is that why we are worrying
4820 about dealing with it rather than just calling error_type? */
4822 static struct type
*range_type_index
;
4824 complain (&range_type_base_complaint
, rangenums
[1]);
4825 if (range_type_index
== NULL
)
4827 init_type (TYPE_CODE_INT
, TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
4828 0, "range type index type", NULL
);
4829 index_type
= range_type_index
;
4832 result_type
= create_range_type ((struct type
*) NULL
, index_type
, n2
, n3
);
4833 return (result_type
);
4836 /* Read in an argument list. This is a list of types, separated by commas
4837 and terminated with END. Return the list of types read in, or (struct type
4838 **)-1 if there is an error. */
4840 static struct type
**
4841 read_args (char **pp
, int end
, struct objfile
*objfile
)
4843 /* FIXME! Remove this arbitrary limit! */
4844 struct type
*types
[1024], **rval
; /* allow for fns of 1023 parameters */
4850 /* Invalid argument list: no ','. */
4851 return (struct type
**) -1;
4853 STABS_CONTINUE (pp
, objfile
);
4854 types
[n
++] = read_type (pp
, objfile
);
4856 (*pp
)++; /* get past `end' (the ':' character) */
4860 rval
= (struct type
**) xmalloc (2 * sizeof (struct type
*));
4862 else if (TYPE_CODE (types
[n
- 1]) != TYPE_CODE_VOID
)
4864 rval
= (struct type
**) xmalloc ((n
+ 1) * sizeof (struct type
*));
4865 memset (rval
+ n
, 0, sizeof (struct type
*));
4869 rval
= (struct type
**) xmalloc (n
* sizeof (struct type
*));
4871 memcpy (rval
, types
, n
* sizeof (struct type
*));
4875 /* Common block handling. */
4877 /* List of symbols declared since the last BCOMM. This list is a tail
4878 of local_symbols. When ECOMM is seen, the symbols on the list
4879 are noted so their proper addresses can be filled in later,
4880 using the common block base address gotten from the assembler
4883 static struct pending
*common_block
;
4884 static int common_block_i
;
4886 /* Name of the current common block. We get it from the BCOMM instead of the
4887 ECOMM to match IBM documentation (even though IBM puts the name both places
4888 like everyone else). */
4889 static char *common_block_name
;
4891 /* Process a N_BCOMM symbol. The storage for NAME is not guaranteed
4892 to remain after this function returns. */
4895 common_block_start (char *name
, struct objfile
*objfile
)
4897 if (common_block_name
!= NULL
)
4899 static struct complaint msg
=
4901 "Invalid symbol data: common block within common block",
4905 common_block
= local_symbols
;
4906 common_block_i
= local_symbols
? local_symbols
->nsyms
: 0;
4907 common_block_name
= obsavestring (name
, strlen (name
),
4908 &objfile
->symbol_obstack
);
4911 /* Process a N_ECOMM symbol. */
4914 common_block_end (struct objfile
*objfile
)
4916 /* Symbols declared since the BCOMM are to have the common block
4917 start address added in when we know it. common_block and
4918 common_block_i point to the first symbol after the BCOMM in
4919 the local_symbols list; copy the list and hang it off the
4920 symbol for the common block name for later fixup. */
4923 struct pending
*new = 0;
4924 struct pending
*next
;
4927 if (common_block_name
== NULL
)
4929 static struct complaint msg
=
4930 {"ECOMM symbol unmatched by BCOMM", 0, 0};
4935 sym
= (struct symbol
*)
4936 obstack_alloc (&objfile
->symbol_obstack
, sizeof (struct symbol
));
4937 memset (sym
, 0, sizeof (struct symbol
));
4938 /* Note: common_block_name already saved on symbol_obstack */
4939 SYMBOL_NAME (sym
) = common_block_name
;
4940 SYMBOL_CLASS (sym
) = LOC_BLOCK
;
4942 /* Now we copy all the symbols which have been defined since the BCOMM. */
4944 /* Copy all the struct pendings before common_block. */
4945 for (next
= local_symbols
;
4946 next
!= NULL
&& next
!= common_block
;
4949 for (j
= 0; j
< next
->nsyms
; j
++)
4950 add_symbol_to_list (next
->symbol
[j
], &new);
4953 /* Copy however much of COMMON_BLOCK we need. If COMMON_BLOCK is
4954 NULL, it means copy all the local symbols (which we already did
4957 if (common_block
!= NULL
)
4958 for (j
= common_block_i
; j
< common_block
->nsyms
; j
++)
4959 add_symbol_to_list (common_block
->symbol
[j
], &new);
4961 SYMBOL_TYPE (sym
) = (struct type
*) new;
4963 /* Should we be putting local_symbols back to what it was?
4966 i
= hashname (SYMBOL_NAME (sym
));
4967 SYMBOL_VALUE_CHAIN (sym
) = global_sym_chain
[i
];
4968 global_sym_chain
[i
] = sym
;
4969 common_block_name
= NULL
;
4972 /* Add a common block's start address to the offset of each symbol
4973 declared to be in it (by being between a BCOMM/ECOMM pair that uses
4974 the common block name). */
4977 fix_common_block (struct symbol
*sym
, int valu
)
4979 struct pending
*next
= (struct pending
*) SYMBOL_TYPE (sym
);
4980 for (; next
; next
= next
->next
)
4983 for (j
= next
->nsyms
- 1; j
>= 0; j
--)
4984 SYMBOL_VALUE_ADDRESS (next
->symbol
[j
]) += valu
;
4990 /* What about types defined as forward references inside of a small lexical
4992 /* Add a type to the list of undefined types to be checked through
4993 once this file has been read in. */
4996 add_undefined_type (struct type
*type
)
4998 if (undef_types_length
== undef_types_allocated
)
5000 undef_types_allocated
*= 2;
5001 undef_types
= (struct type
**)
5002 xrealloc ((char *) undef_types
,
5003 undef_types_allocated
* sizeof (struct type
*));
5005 undef_types
[undef_types_length
++] = type
;
5008 /* Go through each undefined type, see if it's still undefined, and fix it
5009 up if possible. We have two kinds of undefined types:
5011 TYPE_CODE_ARRAY: Array whose target type wasn't defined yet.
5012 Fix: update array length using the element bounds
5013 and the target type's length.
5014 TYPE_CODE_STRUCT, TYPE_CODE_UNION: Structure whose fields were not
5015 yet defined at the time a pointer to it was made.
5016 Fix: Do a full lookup on the struct/union tag. */
5018 cleanup_undefined_types (void)
5022 for (type
= undef_types
; type
< undef_types
+ undef_types_length
; type
++)
5024 switch (TYPE_CODE (*type
))
5027 case TYPE_CODE_STRUCT
:
5028 case TYPE_CODE_UNION
:
5029 case TYPE_CODE_ENUM
:
5031 /* Check if it has been defined since. Need to do this here
5032 as well as in check_typedef to deal with the (legitimate in
5033 C though not C++) case of several types with the same name
5034 in different source files. */
5035 if (TYPE_STUB (*type
))
5037 struct pending
*ppt
;
5039 /* Name of the type, without "struct" or "union" */
5040 char *typename
= TYPE_TAG_NAME (*type
);
5042 if (typename
== NULL
)
5044 static struct complaint msg
=
5045 {"need a type name", 0, 0};
5049 for (ppt
= file_symbols
; ppt
; ppt
= ppt
->next
)
5051 for (i
= 0; i
< ppt
->nsyms
; i
++)
5053 struct symbol
*sym
= ppt
->symbol
[i
];
5055 if (SYMBOL_CLASS (sym
) == LOC_TYPEDEF
5056 && SYMBOL_NAMESPACE (sym
) == STRUCT_NAMESPACE
5057 && (TYPE_CODE (SYMBOL_TYPE (sym
)) ==
5059 && STREQ (SYMBOL_NAME (sym
), typename
))
5061 memcpy (*type
, SYMBOL_TYPE (sym
),
5062 sizeof (struct type
));
5072 static struct complaint msg
=
5074 GDB internal error. cleanup_undefined_types with bad type %d.", 0, 0};
5075 complain (&msg
, TYPE_CODE (*type
));
5081 undef_types_length
= 0;
5084 /* Scan through all of the global symbols defined in the object file,
5085 assigning values to the debugging symbols that need to be assigned
5086 to. Get these symbols from the minimal symbol table. */
5089 scan_file_globals (struct objfile
*objfile
)
5092 struct minimal_symbol
*msymbol
;
5093 struct symbol
*sym
, *prev
, *rsym
;
5094 struct objfile
*resolve_objfile
;
5096 /* SVR4 based linkers copy referenced global symbols from shared
5097 libraries to the main executable.
5098 If we are scanning the symbols for a shared library, try to resolve
5099 them from the minimal symbols of the main executable first. */
5101 if (symfile_objfile
&& objfile
!= symfile_objfile
)
5102 resolve_objfile
= symfile_objfile
;
5104 resolve_objfile
= objfile
;
5108 /* Avoid expensive loop through all minimal symbols if there are
5109 no unresolved symbols. */
5110 for (hash
= 0; hash
< HASHSIZE
; hash
++)
5112 if (global_sym_chain
[hash
])
5115 if (hash
>= HASHSIZE
)
5118 for (msymbol
= resolve_objfile
->msymbols
;
5119 msymbol
&& SYMBOL_NAME (msymbol
) != NULL
;
5124 /* Skip static symbols. */
5125 switch (MSYMBOL_TYPE (msymbol
))
5137 /* Get the hash index and check all the symbols
5138 under that hash index. */
5140 hash
= hashname (SYMBOL_NAME (msymbol
));
5142 for (sym
= global_sym_chain
[hash
]; sym
;)
5144 if (SYMBOL_NAME (msymbol
)[0] == SYMBOL_NAME (sym
)[0] &&
5145 STREQ (SYMBOL_NAME (msymbol
) + 1, SYMBOL_NAME (sym
) + 1))
5148 struct alias_list
*aliases
;
5150 /* Splice this symbol out of the hash chain and
5151 assign the value we have to it. */
5154 SYMBOL_VALUE_CHAIN (prev
) = SYMBOL_VALUE_CHAIN (sym
);
5158 global_sym_chain
[hash
] = SYMBOL_VALUE_CHAIN (sym
);
5161 /* Check to see whether we need to fix up a common block. */
5162 /* Note: this code might be executed several times for
5163 the same symbol if there are multiple references. */
5165 /* If symbol has aliases, do minimal symbol fixups for each.
5166 These live aliases/references weren't added to
5167 global_sym_chain hash but may also need to be fixed up. */
5168 /* FIXME: Maybe should have added aliases to the global chain, resolved symbol name, then treated aliases as normal
5169 symbols? Still, we wouldn't want to add_to_list. */
5170 /* Now do the same for each alias of this symbol */
5172 aliases
= SYMBOL_ALIASES (sym
);
5175 if (SYMBOL_CLASS (rsym
) == LOC_BLOCK
)
5177 fix_common_block (rsym
,
5178 SYMBOL_VALUE_ADDRESS (msymbol
));
5182 SYMBOL_VALUE_ADDRESS (rsym
)
5183 = SYMBOL_VALUE_ADDRESS (msymbol
);
5185 SYMBOL_SECTION (rsym
) = SYMBOL_SECTION (msymbol
);
5188 rsym
= aliases
->sym
;
5189 aliases
= aliases
->next
;
5198 sym
= SYMBOL_VALUE_CHAIN (prev
);
5202 sym
= global_sym_chain
[hash
];
5208 sym
= SYMBOL_VALUE_CHAIN (sym
);
5212 if (resolve_objfile
== objfile
)
5214 resolve_objfile
= objfile
;
5217 /* Change the storage class of any remaining unresolved globals to
5218 LOC_UNRESOLVED and remove them from the chain. */
5219 for (hash
= 0; hash
< HASHSIZE
; hash
++)
5221 sym
= global_sym_chain
[hash
];
5225 sym
= SYMBOL_VALUE_CHAIN (sym
);
5227 /* Change the symbol address from the misleading chain value
5229 SYMBOL_VALUE_ADDRESS (prev
) = 0;
5231 /* Complain about unresolved common block symbols. */
5232 if (SYMBOL_CLASS (prev
) == LOC_STATIC
)
5233 SYMBOL_CLASS (prev
) = LOC_UNRESOLVED
;
5235 complain (&unresolved_sym_chain_complaint
,
5236 objfile
->name
, SYMBOL_NAME (prev
));
5239 memset (global_sym_chain
, 0, sizeof (global_sym_chain
));
5242 /* Initialize anything that needs initializing when starting to read
5243 a fresh piece of a symbol file, e.g. reading in the stuff corresponding
5247 stabsread_init (void)
5251 /* Initialize anything that needs initializing when a completely new
5252 symbol file is specified (not just adding some symbols from another
5253 file, e.g. a shared library). */
5256 stabsread_new_init (void)
5258 /* Empty the hash table of global syms looking for values. */
5259 memset (global_sym_chain
, 0, sizeof (global_sym_chain
));
5262 /* Initialize anything that needs initializing at the same time as
5263 start_symtab() is called. */
5268 global_stabs
= NULL
; /* AIX COFF */
5269 /* Leave FILENUM of 0 free for builtin types and this file's types. */
5270 n_this_object_header_files
= 1;
5271 type_vector_length
= 0;
5272 type_vector
= (struct type
**) 0;
5274 /* FIXME: If common_block_name is not already NULL, we should complain(). */
5275 common_block_name
= NULL
;
5280 /* Call after end_symtab() */
5287 xfree (type_vector
);
5290 type_vector_length
= 0;
5291 previous_stab_code
= 0;
5295 finish_global_stabs (struct objfile
*objfile
)
5299 patch_block_stabs (global_symbols
, global_stabs
, objfile
);
5300 xfree (global_stabs
);
5301 global_stabs
= NULL
;
5305 /* Initializer for this module */
5308 _initialize_stabsread (void)
5310 undef_types_allocated
= 20;
5311 undef_types_length
= 0;
5312 undef_types
= (struct type
**)
5313 xmalloc (undef_types_allocated
* sizeof (struct type
*));