1 /* Support routines for decoding "stabs" debugging information format.
2 Copyright 1986, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 1998
3 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21 /* Support routines for reading and decoding debugging information in
22 the "stabs" format. This format is used with many systems that use
23 the a.out object file format, as well as some systems that use
24 COFF or ELF where the stabs data is placed in a special section.
25 Avoid placing any object file format specific code in this file. */
28 #include "gdb_string.h"
33 #include "expression.h"
36 #include "aout/stab_gnu.h" /* We always use GNU stabs, not native */
38 #include "aout/aout64.h"
39 #include "gdb-stabs.h"
41 #include "complaints.h"
47 /* Ask stabsread.h to define the vars it normally declares `extern'. */
49 #include "stabsread.h" /* Our own declarations */
52 extern void _initialize_stabsread
PARAMS ((void));
54 /* The routines that read and process a complete stabs for a C struct or
55 C++ class pass lists of data member fields and lists of member function
56 fields in an instance of a field_info structure, as defined below.
57 This is part of some reorganization of low level C++ support and is
58 expected to eventually go away... (FIXME) */
64 struct nextfield
*next
;
66 /* This is the raw visibility from the stab. It is not checked
67 for being one of the visibilities we recognize, so code which
68 examines this field better be able to deal. */
73 struct next_fnfieldlist
75 struct next_fnfieldlist
*next
;
76 struct fn_fieldlist fn_fieldlist
;
81 read_one_struct_field
PARAMS ((struct field_info
*, char **, char *,
82 struct type
*, struct objfile
*));
85 get_substring
PARAMS ((char **, int));
88 dbx_alloc_type
PARAMS ((int [2], struct objfile
*));
90 static long read_huge_number
PARAMS ((char **, int, int *));
92 static struct type
*error_type
PARAMS ((char **, struct objfile
*));
95 patch_block_stabs
PARAMS ((struct pending
*, struct pending_stabs
*,
99 fix_common_block
PARAMS ((struct symbol
*, int));
102 read_type_number
PARAMS ((char **, int *));
105 read_range_type
PARAMS ((char **, int [2], struct objfile
*));
108 read_sun_builtin_type
PARAMS ((char **, int [2], struct objfile
*));
111 read_sun_floating_type
PARAMS ((char **, int [2], struct objfile
*));
114 read_enum_type
PARAMS ((char **, struct type
*, struct objfile
*));
117 rs6000_builtin_type
PARAMS ((int));
120 read_member_functions
PARAMS ((struct field_info
*, char **, struct type
*,
124 read_struct_fields
PARAMS ((struct field_info
*, char **, struct type
*,
128 read_baseclasses
PARAMS ((struct field_info
*, char **, struct type
*,
132 read_tilde_fields
PARAMS ((struct field_info
*, char **, struct type
*,
136 attach_fn_fields_to_type
PARAMS ((struct field_info
*, struct type
*));
139 attach_fields_to_type
PARAMS ((struct field_info
*, struct type
*,
143 read_struct_type
PARAMS ((char **, struct type
*, struct objfile
*));
146 read_array_type
PARAMS ((char **, struct type
*, struct objfile
*));
148 static struct type
**
149 read_args
PARAMS ((char **, int, struct objfile
*));
152 read_cpp_abbrev
PARAMS ((struct field_info
*, char **, struct type
*,
155 /* new functions added for cfront support */
158 copy_cfront_struct_fields
PARAMS ((struct field_info
*, struct type
*,
162 get_cfront_method_physname
PARAMS ((char *));
165 read_cfront_baseclasses
PARAMS ((struct field_info
*, char **,
166 struct type
*, struct objfile
*));
169 read_cfront_static_fields
PARAMS ((struct field_info
*, char**,
170 struct type
*, struct objfile
*));
172 read_cfront_member_functions
PARAMS ((struct field_info
*, char **,
173 struct type
*, struct objfile
*));
175 /* end new functions added for cfront support */
178 add_live_range
PARAMS ((struct objfile
*, struct symbol
*,
179 CORE_ADDR
, CORE_ADDR
));
182 resolve_live_range
PARAMS ((struct objfile
*, struct symbol
*, char *));
185 process_reference
PARAMS ((char **string
));
188 ref_search_value
PARAMS ((int refnum
));
191 resolve_symbol_reference
PARAMS ((struct objfile
*, struct symbol
*, char *));
193 static const char vptr_name
[] = { '_','v','p','t','r',CPLUS_MARKER
,'\0' };
194 static const char vb_name
[] = { '_','v','b',CPLUS_MARKER
,'\0' };
196 /* Define this as 1 if a pcc declaration of a char or short argument
197 gives the correct address. Otherwise assume pcc gives the
198 address of the corresponding int, which is not the same on a
199 big-endian machine. */
201 #if !defined (BELIEVE_PCC_PROMOTION)
202 #define BELIEVE_PCC_PROMOTION 0
204 #if !defined (BELIEVE_PCC_PROMOTION_TYPE)
205 #define BELIEVE_PCC_PROMOTION_TYPE 0
208 static struct complaint invalid_cpp_abbrev_complaint
=
209 {"invalid C++ abbreviation `%s'", 0, 0};
211 static struct complaint invalid_cpp_type_complaint
=
212 {"C++ abbreviated type name unknown at symtab pos %d", 0, 0};
214 static struct complaint member_fn_complaint
=
215 {"member function type missing, got '%c'", 0, 0};
217 static struct complaint const_vol_complaint
=
218 {"const/volatile indicator missing, got '%c'", 0, 0};
220 static struct complaint error_type_complaint
=
221 {"debug info mismatch between compiler and debugger", 0, 0};
223 static struct complaint invalid_member_complaint
=
224 {"invalid (minimal) member type data format at symtab pos %d.", 0, 0};
226 static struct complaint range_type_base_complaint
=
227 {"base type %d of range type is not defined", 0, 0};
229 static struct complaint reg_value_complaint
=
230 {"register number %d too large (max %d) in symbol %s", 0, 0};
232 static struct complaint vtbl_notfound_complaint
=
233 {"virtual function table pointer not found when defining class `%s'", 0, 0};
235 static struct complaint unrecognized_cplus_name_complaint
=
236 {"Unknown C++ symbol name `%s'", 0, 0};
238 static struct complaint rs6000_builtin_complaint
=
239 {"Unknown builtin type %d", 0, 0};
241 static struct complaint unresolved_sym_chain_complaint
=
242 {"%s: common block `%s' from global_sym_chain unresolved", 0, 0};
244 static struct complaint stabs_general_complaint
=
247 static struct complaint lrs_general_complaint
=
250 /* Make a list of forward references which haven't been defined. */
252 static struct type
**undef_types
;
253 static int undef_types_allocated
;
254 static int undef_types_length
;
255 static struct symbol
*current_symbol
= NULL
;
257 /* Check for and handle cretinous stabs symbol name continuation! */
258 #define STABS_CONTINUE(pp,objfile) \
260 if (**(pp) == '\\' || (**(pp) == '?' && (*(pp))[1] == '\0')) \
261 *(pp) = next_symbol_text (objfile); \
264 /* FIXME: These probably should be our own types (like rs6000_builtin_type
265 has its own types) rather than builtin_type_*. */
266 static struct type
**os9k_type_vector
[] = {
272 &builtin_type_unsigned_char
,
273 &builtin_type_unsigned_short
,
274 &builtin_type_unsigned_long
,
275 &builtin_type_unsigned_int
,
277 &builtin_type_double
,
279 &builtin_type_long_double
282 static void os9k_init_type_vector
PARAMS ((struct type
**));
285 os9k_init_type_vector(tv
)
289 for (i
=0; i
<sizeof(os9k_type_vector
)/sizeof(struct type
**); i
++)
290 tv
[i
] = (os9k_type_vector
[i
] == 0 ? 0 : *(os9k_type_vector
[i
]));
293 /* Look up a dbx type-number pair. Return the address of the slot
294 where the type for that number-pair is stored.
295 The number-pair is in TYPENUMS.
297 This can be used for finding the type associated with that pair
298 or for associating a new type with the pair. */
301 dbx_lookup_type (typenums
)
304 register int filenum
= typenums
[0];
305 register int index
= typenums
[1];
307 register int real_filenum
;
308 register struct header_file
*f
;
311 if (filenum
== -1) /* -1,-1 is for temporary types. */
314 if (filenum
< 0 || filenum
>= n_this_object_header_files
)
316 static struct complaint msg
= {"\
317 Invalid symbol data: type number (%d,%d) out of range at symtab pos %d.",
319 complain (&msg
, filenum
, index
, symnum
);
327 /* Caller wants address of address of type. We think
328 that negative (rs6k builtin) types will never appear as
329 "lvalues", (nor should they), so we stuff the real type
330 pointer into a temp, and return its address. If referenced,
331 this will do the right thing. */
332 static struct type
*temp_type
;
334 temp_type
= rs6000_builtin_type(index
);
338 /* Type is defined outside of header files.
339 Find it in this object file's type vector. */
340 if (index
>= type_vector_length
)
342 old_len
= type_vector_length
;
345 type_vector_length
= INITIAL_TYPE_VECTOR_LENGTH
;
346 type_vector
= (struct type
**)
347 xmalloc (type_vector_length
* sizeof (struct type
*));
349 while (index
>= type_vector_length
)
351 type_vector_length
*= 2;
353 type_vector
= (struct type
**)
354 xrealloc ((char *) type_vector
,
355 (type_vector_length
* sizeof (struct type
*)));
356 memset (&type_vector
[old_len
], 0,
357 (type_vector_length
- old_len
) * sizeof (struct type
*));
360 /* Deal with OS9000 fundamental types. */
361 os9k_init_type_vector (type_vector
);
363 return (&type_vector
[index
]);
367 real_filenum
= this_object_header_files
[filenum
];
369 if (real_filenum
>= N_HEADER_FILES (current_objfile
))
371 struct type
*temp_type
;
372 struct type
**temp_type_p
;
374 warning ("GDB internal error: bad real_filenum");
377 temp_type
= init_type (TYPE_CODE_ERROR
, 0, 0, NULL
, NULL
);
378 temp_type_p
= (struct type
**) xmalloc (sizeof (struct type
*));
379 *temp_type_p
= temp_type
;
383 f
= HEADER_FILES (current_objfile
) + real_filenum
;
385 f_orig_length
= f
->length
;
386 if (index
>= f_orig_length
)
388 while (index
>= f
->length
)
392 f
->vector
= (struct type
**)
393 xrealloc ((char *) f
->vector
, f
->length
* sizeof (struct type
*));
394 memset (&f
->vector
[f_orig_length
], 0,
395 (f
->length
- f_orig_length
) * sizeof (struct type
*));
397 return (&f
->vector
[index
]);
401 /* Make sure there is a type allocated for type numbers TYPENUMS
402 and return the type object.
403 This can create an empty (zeroed) type object.
404 TYPENUMS may be (-1, -1) to return a new type object that is not
405 put into the type vector, and so may not be referred to by number. */
408 dbx_alloc_type (typenums
, objfile
)
410 struct objfile
*objfile
;
412 register struct type
**type_addr
;
414 if (typenums
[0] == -1)
416 return (alloc_type (objfile
));
419 type_addr
= dbx_lookup_type (typenums
);
421 /* If we are referring to a type not known at all yet,
422 allocate an empty type for it.
423 We will fill it in later if we find out how. */
426 *type_addr
= alloc_type (objfile
);
432 /* for all the stabs in a given stab vector, build appropriate types
433 and fix their symbols in given symbol vector. */
436 patch_block_stabs (symbols
, stabs
, objfile
)
437 struct pending
*symbols
;
438 struct pending_stabs
*stabs
;
439 struct objfile
*objfile
;
449 /* for all the stab entries, find their corresponding symbols and
450 patch their types! */
452 for (ii
= 0; ii
< stabs
->count
; ++ii
)
454 name
= stabs
->stab
[ii
];
455 pp
= (char*) strchr (name
, ':');
459 pp
= (char *)strchr(pp
, ':');
461 sym
= find_symbol_in_list (symbols
, name
, pp
-name
);
464 /* FIXME-maybe: it would be nice if we noticed whether
465 the variable was defined *anywhere*, not just whether
466 it is defined in this compilation unit. But neither
467 xlc or GCC seem to need such a definition, and until
468 we do psymtabs (so that the minimal symbols from all
469 compilation units are available now), I'm not sure
470 how to get the information. */
472 /* On xcoff, if a global is defined and never referenced,
473 ld will remove it from the executable. There is then
474 a N_GSYM stab for it, but no regular (C_EXT) symbol. */
475 sym
= (struct symbol
*)
476 obstack_alloc (&objfile
->symbol_obstack
,
477 sizeof (struct symbol
));
479 memset (sym
, 0, sizeof (struct symbol
));
480 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
481 SYMBOL_CLASS (sym
) = LOC_OPTIMIZED_OUT
;
483 obsavestring (name
, pp
- name
, &objfile
->symbol_obstack
);
485 if (*(pp
-1) == 'F' || *(pp
-1) == 'f')
487 /* I don't think the linker does this with functions,
488 so as far as I know this is never executed.
489 But it doesn't hurt to check. */
491 lookup_function_type (read_type (&pp
, objfile
));
495 SYMBOL_TYPE (sym
) = read_type (&pp
, objfile
);
497 add_symbol_to_list (sym
, &global_symbols
);
502 if (*(pp
-1) == 'F' || *(pp
-1) == 'f')
505 lookup_function_type (read_type (&pp
, objfile
));
509 SYMBOL_TYPE (sym
) = read_type (&pp
, objfile
);
517 /* Read a number by which a type is referred to in dbx data,
518 or perhaps read a pair (FILENUM, TYPENUM) in parentheses.
519 Just a single number N is equivalent to (0,N).
520 Return the two numbers by storing them in the vector TYPENUMS.
521 TYPENUMS will then be used as an argument to dbx_lookup_type.
523 Returns 0 for success, -1 for error. */
526 read_type_number (pp
, typenums
)
528 register int *typenums
;
534 typenums
[0] = read_huge_number (pp
, ',', &nbits
);
535 if (nbits
!= 0) return -1;
536 typenums
[1] = read_huge_number (pp
, ')', &nbits
);
537 if (nbits
!= 0) return -1;
542 typenums
[1] = read_huge_number (pp
, 0, &nbits
);
543 if (nbits
!= 0) return -1;
549 #if !defined (REG_STRUCT_HAS_ADDR)
550 #define REG_STRUCT_HAS_ADDR(gcc_p,type) 0
553 #define VISIBILITY_PRIVATE '0' /* Stabs character for private field */
554 #define VISIBILITY_PROTECTED '1' /* Stabs character for protected fld */
555 #define VISIBILITY_PUBLIC '2' /* Stabs character for public field */
556 #define VISIBILITY_IGNORE '9' /* Optimized out or zero length */
558 #define CFRONT_VISIBILITY_PRIVATE '2' /* Stabs character for private field */
559 #define CFRONT_VISIBILITY_PUBLIC '1' /* Stabs character for public field */
561 /* This code added to support parsing of ARM/Cfront stabs strings */
563 /* Get substring from string up to char c, advance string pointer past
584 /* Physname gets strcat'd onto sname in order to recreate the mangled
585 name (see funtion gdb_mangle_name in gdbtypes.c). For cfront, make
586 the physname look like that of g++ - take out the initial mangling
587 eg: for sname="a" and fname="foo__1aFPFs_i" return "FPFs_i" */
590 get_cfront_method_physname (fname
)
594 /* FIXME would like to make this generic for g++ too, but
595 that is already handled in read_member_funcctions */
598 /* search ahead to find the start of the mangled suffix */
599 if (*p
== '_' && *(p
+1)=='_') /* compiler generated; probably a ctor/dtor */
601 while (p
&& (unsigned) ((p
+1) - fname
) < strlen (fname
) && *(p
+1) != '_')
603 if (!(p
&& *p
== '_' && *(p
+1) == '_'))
604 error ("Invalid mangled function name %s",fname
);
605 p
+= 2; /* advance past '__' */
607 /* struct name length and name of type should come next; advance past it */
610 len
= len
* 10 + (*p
- '0');
618 /* Read base classes within cfront class definition.
619 eg: A:ZcA;1@Bpub v2@Bvirpri;__ct__1AFv func__1AFv *sfunc__1AFv ;as__1A ;;
622 A:ZcA;;foopri__1AFv foopro__1AFv __ct__1AFv __ct__1AFRC1A foopub__1AFv ;;;
627 read_cfront_baseclasses (fip
, pp
, type
, objfile
)
628 struct field_info
*fip
;
629 struct objfile
*objfile
;
633 static struct complaint msg_unknown
= {"\
634 Unsupported token in stabs string %s.\n",
636 static struct complaint msg_notfound
= {"\
637 Unable to find base type for %s.\n",
642 struct nextfield
*new;
644 if (**pp
== ';') /* no base classes; return */
650 /* first count base classes so we can allocate space before parsing */
651 for (p
= *pp
; p
&& *p
&& *p
!= ';'; p
++)
656 bnum
++; /* add one more for last one */
658 /* now parse the base classes until we get to the start of the methods
659 (code extracted and munged from read_baseclasses) */
660 ALLOCATE_CPLUS_STRUCT_TYPE (type
);
661 TYPE_N_BASECLASSES(type
) = bnum
;
665 int num_bytes
= B_BYTES (TYPE_N_BASECLASSES (type
));
668 pointer
= (char *) TYPE_ALLOC (type
, num_bytes
);
669 TYPE_FIELD_VIRTUAL_BITS (type
) = (B_TYPE
*) pointer
;
671 B_CLRALL (TYPE_FIELD_VIRTUAL_BITS (type
), TYPE_N_BASECLASSES (type
));
673 for (i
= 0; i
< TYPE_N_BASECLASSES (type
); i
++)
675 new = (struct nextfield
*) xmalloc (sizeof (struct nextfield
));
676 make_cleanup (free
, new);
677 memset (new, 0, sizeof (struct nextfield
));
678 new -> next
= fip
-> list
;
680 FIELD_BITSIZE (new->field
) = 0; /* this should be an unpacked field! */
682 STABS_CONTINUE (pp
, objfile
);
684 /* virtual? eg: v2@Bvir */
687 SET_TYPE_FIELD_VIRTUAL (type
, i
);
691 /* access? eg: 2@Bvir */
692 /* Note: protected inheritance not supported in cfront */
695 case CFRONT_VISIBILITY_PRIVATE
:
696 new -> visibility
= VISIBILITY_PRIVATE
;
698 case CFRONT_VISIBILITY_PUBLIC
:
699 new -> visibility
= VISIBILITY_PUBLIC
;
702 /* Bad visibility format. Complain and treat it as
705 static struct complaint msg
= {
706 "Unknown visibility `%c' for baseclass", 0, 0};
707 complain (&msg
, new -> visibility
);
708 new -> visibility
= VISIBILITY_PUBLIC
;
712 /* "@" comes next - eg: @Bvir */
715 complain (&msg_unknown
, *pp
);
721 /* Set the bit offset of the portion of the object corresponding
722 to this baseclass. Always zero in the absence of
723 multiple inheritance. */
724 /* Unable to read bit position from stabs;
725 Assuming no multiple inheritance for now FIXME! */
726 /* We may have read this in the structure definition;
727 now we should fixup the members to be the actual base classes */
728 FIELD_BITPOS (new->field
) = 0;
730 /* Get the base class name and type */
732 char * bname
; /* base class name */
733 struct symbol
* bsym
; /* base class */
735 p1
= strchr (*pp
,' ');
736 p2
= strchr (*pp
,';');
738 bname
= get_substring (pp
,' ');
740 bname
= get_substring (pp
,';');
741 if (!bname
|| !*bname
)
743 complain (&msg_unknown
, *pp
);
746 /* FIXME! attach base info to type */
747 bsym
= lookup_symbol (bname
, 0, STRUCT_NAMESPACE
, 0, 0); /*demangled_name*/
750 new -> field
.type
= SYMBOL_TYPE(bsym
);
751 new -> field
.name
= type_name_no_tag (new -> field
.type
);
755 complain (&msg_notfound
, *pp
);
760 /* If more base classes to parse, loop again.
761 We ate the last ' ' or ';' in get_substring,
762 so on exit we will have skipped the trailing ';' */
763 /* if invalid, return 0; add code to detect - FIXME! */
768 /* read cfront member functions.
769 pp points to string starting with list of functions
770 eg: A:ZcA;1@Bpub v2@Bvirpri;__ct__1AFv func__1AFv *sfunc__1AFv ;as__1A ;;
771 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
772 A:ZcA;;foopri__1AFv foopro__1AFv __ct__1AFv __ct__1AFRC1A foopub__1AFv ;;;
773 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
777 read_cfront_member_functions (fip
, pp
, type
, objfile
)
778 struct field_info
*fip
;
781 struct objfile
*objfile
;
783 /* This code extracted from read_member_functions
784 so as to do the similar thing for our funcs */
788 /* Total number of member functions defined in this class. If the class
789 defines two `f' functions, and one `g' function, then this will have
791 int total_length
= 0;
795 struct next_fnfield
*next
;
796 struct fn_field fn_field
;
798 struct type
*look_ahead_type
;
799 struct next_fnfieldlist
*new_fnlist
;
800 struct next_fnfield
*new_sublist
;
803 struct symbol
* ref_func
= 0;
805 /* Process each list until we find the end of the member functions.
806 eg: p = "__ct__1AFv foo__1AFv ;;;" */
808 STABS_CONTINUE (pp
, objfile
); /* handle \\ */
810 while (**pp
!= ';' && (fname
= get_substring (pp
, ' '), fname
))
813 int sublist_count
= 0;
815 if (fname
[0] == '*') /* static member */
821 ref_func
= lookup_symbol (fname
, 0, VAR_NAMESPACE
, 0, 0); /* demangled name */
824 static struct complaint msg
= {"\
825 Unable to find function symbol for %s\n",
827 complain (&msg
, fname
);
831 look_ahead_type
= NULL
;
834 new_fnlist
= (struct next_fnfieldlist
*)
835 xmalloc (sizeof (struct next_fnfieldlist
));
836 make_cleanup (free
, new_fnlist
);
837 memset (new_fnlist
, 0, sizeof (struct next_fnfieldlist
));
839 /* The following is code to work around cfront generated stabs.
840 The stabs contains full mangled name for each field.
841 We try to demangle the name and extract the field name out of it. */
843 char *dem
, *dem_p
, *dem_args
;
845 dem
= cplus_demangle (fname
, DMGL_ANSI
| DMGL_PARAMS
);
848 dem_p
= strrchr (dem
, ':');
849 if (dem_p
!= 0 && *(dem_p
-1) == ':')
851 /* get rid of args */
852 dem_args
= strchr (dem_p
, '(');
853 if (dem_args
== NULL
)
854 dem_len
= strlen (dem_p
);
856 dem_len
= dem_args
- dem_p
;
858 obsavestring (dem_p
, dem_len
, &objfile
-> type_obstack
);
863 obsavestring (fname
, strlen (fname
), &objfile
-> type_obstack
);
865 } /* end of code for cfront work around */
867 new_fnlist
-> fn_fieldlist
.name
= main_fn_name
;
869 /*-------------------------------------------------*/
870 /* Set up the sublists
871 Sublists are stuff like args, static, visibility, etc.
872 so in ARM, we have to set that info some other way.
873 Multiple sublists happen if overloading
874 eg: foo::26=##1;:;2A.;
875 In g++, we'd loop here thru all the sublists... */
878 (struct next_fnfield
*) xmalloc (sizeof (struct next_fnfield
));
879 make_cleanup (free
, new_sublist
);
880 memset (new_sublist
, 0, sizeof (struct next_fnfield
));
882 /* eat 1; from :;2A.; */
883 new_sublist
-> fn_field
.type
= SYMBOL_TYPE(ref_func
); /* normally takes a read_type */
884 /* Make this type look like a method stub for gdb */
885 TYPE_FLAGS (new_sublist
-> fn_field
.type
) |= TYPE_FLAG_STUB
;
886 TYPE_CODE (new_sublist
-> fn_field
.type
) = TYPE_CODE_METHOD
;
888 /* If this is just a stub, then we don't have the real name here. */
889 if (TYPE_FLAGS (new_sublist
-> fn_field
.type
) & TYPE_FLAG_STUB
)
891 if (!TYPE_DOMAIN_TYPE (new_sublist
-> fn_field
.type
))
892 TYPE_DOMAIN_TYPE (new_sublist
-> fn_field
.type
) = type
;
893 new_sublist
-> fn_field
.is_stub
= 1;
896 /* physname used later in mangling; eg PFs_i,5 for foo__1aFPFs_i
897 physname gets strcat'd in order to recreate the onto mangled name */
898 pname
= get_cfront_method_physname (fname
);
899 new_sublist
-> fn_field
.physname
= savestring (pname
, strlen (pname
));
902 /* Set this member function's visibility fields.
903 Unable to distinguish access from stabs definition!
904 Assuming public for now. FIXME!
905 (for private, set new_sublist->fn_field.is_private = 1,
906 for public, set new_sublist->fn_field.is_protected = 1) */
908 /* Unable to distinguish const/volatile from stabs definition!
909 Assuming normal for now. FIXME! */
911 new_sublist
-> fn_field
.is_const
= 0;
912 new_sublist
-> fn_field
.is_volatile
= 0; /* volatile not implemented in cfront */
914 /* Set virtual/static function info
915 How to get vtable offsets ?
916 Assuming normal for now FIXME!!
917 For vtables, figure out from whence this virtual function came.
918 It may belong to virtual function table of
919 one of its baseclasses.
921 new_sublist -> fn_field.voffset = vtable offset,
922 new_sublist -> fn_field.fcontext = look_ahead_type;
923 where look_ahead_type is type of baseclass */
925 new_sublist
-> fn_field
.voffset
= VOFFSET_STATIC
;
926 else /* normal member function. */
927 new_sublist
-> fn_field
.voffset
= 0;
928 new_sublist
-> fn_field
.fcontext
= 0;
931 /* Prepare new sublist */
932 new_sublist
-> next
= sublist
;
933 sublist
= new_sublist
;
936 /* In g++, we loop thu sublists - now we set from functions. */
937 new_fnlist
-> fn_fieldlist
.fn_fields
= (struct fn_field
*)
938 obstack_alloc (&objfile
-> type_obstack
,
939 sizeof (struct fn_field
) * length
);
940 memset (new_fnlist
-> fn_fieldlist
.fn_fields
, 0,
941 sizeof (struct fn_field
) * length
);
942 for (i
= length
; (i
--, sublist
); sublist
= sublist
-> next
)
944 new_fnlist
-> fn_fieldlist
.fn_fields
[i
] = sublist
-> fn_field
;
947 new_fnlist
-> fn_fieldlist
.length
= length
;
948 new_fnlist
-> next
= fip
-> fnlist
;
949 fip
-> fnlist
= new_fnlist
;
951 total_length
+= length
;
952 STABS_CONTINUE (pp
, objfile
); /* handle \\ */
957 /* type should already have space */
958 TYPE_FN_FIELDLISTS (type
) = (struct fn_fieldlist
*)
959 TYPE_ALLOC (type
, sizeof (struct fn_fieldlist
) * nfn_fields
);
960 memset (TYPE_FN_FIELDLISTS (type
), 0,
961 sizeof (struct fn_fieldlist
) * nfn_fields
);
962 TYPE_NFN_FIELDS (type
) = nfn_fields
;
963 TYPE_NFN_FIELDS_TOTAL (type
) = total_length
;
966 /* end of scope for reading member func */
970 /* Skip trailing ';' and bump count of number of fields seen */
978 /* This routine fixes up partial cfront types that were created
979 while parsing the stabs. The main need for this function is
980 to add information such as methods to classes.
981 Examples of "p": "sA;;__ct__1AFv foo__1AFv ;;;" */
983 resolve_cfront_continuation (objfile
, sym
, p
)
984 struct objfile
* objfile
;
988 struct symbol
* ref_sym
=0;
990 /* snarfed from read_struct_type */
991 struct field_info fi
;
993 struct cleanup
*back_to
;
995 /* Need to make sure that fi isn't gunna conflict with struct
996 in case struct already had some fnfs */
999 back_to
= make_cleanup (null_cleanup
, 0);
1001 /* We only accept structs, classes and unions at the moment.
1002 Other continuation types include t (typedef), r (long dbl), ...
1003 We may want to add support for them as well;
1004 right now they are handled by duplicating the symbol information
1005 into the type information (see define_symbol) */
1006 if (*p
!= 's' /* structs */
1007 && *p
!= 'c' /* class */
1008 && *p
!= 'u') /* union */
1009 return 0; /* only handle C++ types */
1012 /* Get symbol typs name and validate
1013 eg: p = "A;;__ct__1AFv foo__1AFv ;;;" */
1014 sname
= get_substring (&p
, ';');
1015 if (!sname
|| strcmp (sname
, SYMBOL_NAME(sym
)))
1016 error ("Internal error: base symbol type name does not match\n");
1018 /* Find symbol's internal gdb reference using demangled_name.
1019 This is the real sym that we want;
1020 sym was a temp hack to make debugger happy */
1021 ref_sym
= lookup_symbol (SYMBOL_NAME(sym
), 0, STRUCT_NAMESPACE
, 0, 0);
1022 type
= SYMBOL_TYPE(ref_sym
);
1025 /* Now read the baseclasses, if any, read the regular C struct or C++
1026 class member fields, attach the fields to the type, read the C++
1027 member functions, attach them to the type, and then read any tilde
1028 field (baseclass specifier for the class holding the main vtable). */
1030 if (!read_cfront_baseclasses (&fi
, &p
, type
, objfile
)
1031 /* g++ does this next, but cfront already did this:
1032 || !read_struct_fields (&fi, &p, type, objfile) */
1033 || !copy_cfront_struct_fields (&fi
, type
, objfile
)
1034 || !read_cfront_member_functions (&fi
, &p
, type
, objfile
)
1035 || !read_cfront_static_fields (&fi
, &p
, type
, objfile
)
1036 || !attach_fields_to_type (&fi
, type
, objfile
)
1037 || !attach_fn_fields_to_type (&fi
, type
)
1038 /* g++ does this next, but cfront doesn't seem to have this:
1039 || !read_tilde_fields (&fi, &p, type, objfile) */
1042 type
= error_type (&p
, objfile
);
1045 do_cleanups (back_to
);
1048 /* End of code added to support parsing of ARM/Cfront stabs strings */
1051 /* This routine fixes up symbol references/aliases to point to the original
1052 symbol definition. Returns 0 on failure, non-zero on success. */
1055 resolve_symbol_reference (objfile
, sym
, p
)
1056 struct objfile
*objfile
;
1061 struct symbol
*ref_sym
=0;
1062 struct alias_list
*alias
;
1064 /* If this is not a symbol reference return now. */
1068 /* Use "#<num>" as the name; we'll fix the name later.
1069 We stored the original symbol name as "#<id>=<name>"
1070 so we can now search for "#<id>" to resolving the reference.
1071 We'll fix the names later by removing the "#<id>" or "#<id>=" */
1073 /*---------------------------------------------------------*/
1074 /* Get the reference id number, and
1075 advance p past the names so we can parse the rest.
1076 eg: id=2 for p : "2=", "2=z:r(0,1)" "2:r(0,1);l(#5,#6),l(#7,#4)" */
1077 /*---------------------------------------------------------*/
1079 /* This gets reference name from string. sym may not have a name. */
1081 /* Get the reference number associated with the reference id in the
1082 gdb stab string. From that reference number, get the main/primary
1083 symbol for this alias. */
1084 refnum
= process_reference (&p
);
1085 ref_sym
= ref_search (refnum
);
1088 complain (&lrs_general_complaint
, "symbol for reference not found");
1092 /* Parse the stab of the referencing symbol
1093 now that we have the referenced symbol.
1094 Add it as a new symbol and a link back to the referenced symbol.
1095 eg: p : "=", "=z:r(0,1)" ":r(0,1);l(#5,#6),l(#7,#4)" */
1098 /* If the stab symbol table and string contain:
1099 RSYM 0 5 00000000 868 #15=z:r(0,1)
1100 LBRAC 0 0 00000000 899 #5=
1101 SLINE 0 16 00000003 923 #6=
1102 Then the same symbols can be later referenced by:
1103 RSYM 0 5 00000000 927 #15:r(0,1);l(#5,#6)
1104 This is used in live range splitting to:
1105 1) specify that a symbol (#15) is actually just a new storage
1106 class for a symbol (#15=z) which was previously defined.
1107 2) specify that the beginning and ending ranges for a symbol
1108 (#15) are the values of the beginning (#5) and ending (#6)
1111 /* Read number as reference id.
1112 eg: p : "=", "=z:r(0,1)" ":r(0,1);l(#5,#6),l(#7,#4)" */
1113 /* FIXME! Might I want to use SYMBOL_CLASS (sym) = LOC_OPTIMIZED_OUT;
1114 in case of "l(0,0)"? */
1116 /*--------------------------------------------------*/
1117 /* Add this symbol to the reference list. */
1118 /*--------------------------------------------------*/
1120 alias
= (struct alias_list
*) obstack_alloc (&objfile
->type_obstack
,
1121 sizeof (struct alias_list
));
1124 complain (&lrs_general_complaint
, "Unable to allocate alias list memory");
1131 if (!SYMBOL_ALIASES (ref_sym
))
1133 SYMBOL_ALIASES (ref_sym
) = alias
;
1137 struct alias_list
*temp
;
1139 /* Get to the end of the list. */
1140 for (temp
= SYMBOL_ALIASES (ref_sym
);
1147 /* Want to fix up name so that other functions (eg. valops)
1148 will correctly print the name.
1149 Don't add_symbol_to_list so that lookup_symbol won't find it.
1150 nope... needed for fixups. */
1151 SYMBOL_NAME (sym
) = SYMBOL_NAME (ref_sym
);
1157 /* Structure for storing pointers to reference definitions for fast lookup
1158 during "process_later". */
1167 #define MAX_CHUNK_REFS 100
1168 #define REF_CHUNK_SIZE (MAX_CHUNK_REFS * sizeof (struct ref_map))
1169 #define REF_MAP_SIZE(ref_chunk) ((ref_chunk) * REF_CHUNK_SIZE)
1171 static struct ref_map
*ref_map
;
1173 /* Ptr to free cell in chunk's linked list. */
1174 static int ref_count
= 0;
1176 /* Number of chunks malloced. */
1177 static int ref_chunk
= 0;
1179 /* Create array of pointers mapping refids to symbols and stab strings.
1180 Add pointers to reference definition symbols and/or their values as we
1181 find them, using their reference numbers as our index.
1182 These will be used later when we resolve references. */
1184 ref_add (refnum
, sym
, stabs
, value
)
1192 if (refnum
>= ref_count
)
1193 ref_count
= refnum
+ 1;
1194 if (ref_count
> ref_chunk
* MAX_CHUNK_REFS
)
1196 int new_slots
= ref_count
- ref_chunk
* MAX_CHUNK_REFS
;
1197 int new_chunks
= new_slots
/ MAX_CHUNK_REFS
+ 1;
1198 ref_map
= (struct ref_map
*)
1199 xrealloc (ref_map
, REF_MAP_SIZE (ref_chunk
+ new_chunks
));
1200 memset (ref_map
+ ref_chunk
* MAX_CHUNK_REFS
, 0, new_chunks
* REF_CHUNK_SIZE
);
1201 ref_chunk
+= new_chunks
;
1203 ref_map
[refnum
].stabs
= stabs
;
1204 ref_map
[refnum
].sym
= sym
;
1205 ref_map
[refnum
].value
= value
;
1208 /* Return defined sym for the reference REFNUM. */
1213 if (refnum
< 0 || refnum
> ref_count
)
1215 return ref_map
[refnum
].sym
;
1218 /* Return value for the reference REFNUM. */
1221 ref_search_value (refnum
)
1224 if (refnum
< 0 || refnum
> ref_count
)
1226 return ref_map
[refnum
].value
;
1229 /* Parse a reference id in STRING and return the resulting
1230 reference number. Move STRING beyond the reference id. */
1233 process_reference (string
)
1239 if (**string
!= '#')
1242 /* Advance beyond the initial '#'. */
1245 /* Read number as reference id. */
1246 while (*p
&& isdigit (*p
))
1248 refnum
= refnum
* 10 + *p
- '0';
1255 /* If STRING defines a reference, store away a pointer to the reference
1256 definition for later use. Return the reference number. */
1259 symbol_reference_defined (string
)
1265 refnum
= process_reference (&p
);
1267 /* Defining symbols end in '=' */
1270 /* Symbol is being defined here. */
1276 /* Must be a reference. Either the symbol has already been defined,
1277 or this is a forward reference to it. */
1285 define_symbol (valu
, string
, desc
, type
, objfile
)
1290 struct objfile
*objfile
;
1292 register struct symbol
*sym
;
1293 char *p
= (char *) strchr (string
, ':');
1298 /* We would like to eliminate nameless symbols, but keep their types.
1299 E.g. stab entry ":t10=*2" should produce a type 10, which is a pointer
1300 to type 2, but, should not create a symbol to address that type. Since
1301 the symbol will be nameless, there is no way any user can refer to it. */
1305 /* Ignore syms with empty names. */
1309 /* Ignore old-style symbols from cc -go */
1316 p
= strchr (p
, ':');
1319 /* If a nameless stab entry, all we need is the type, not the symbol.
1320 e.g. ":t10=*2" or a nameless enum like " :T16=ered:0,green:1,blue:2,;" */
1321 nameless
= (p
== string
|| ((string
[0] == ' ') && (string
[1] == ':')));
1323 current_symbol
= sym
= (struct symbol
*)
1324 obstack_alloc (&objfile
-> symbol_obstack
, sizeof (struct symbol
));
1325 memset (sym
, 0, sizeof (struct symbol
));
1327 switch (type
& N_TYPE
)
1330 SYMBOL_SECTION(sym
) = SECT_OFF_TEXT
;
1333 SYMBOL_SECTION(sym
) = SECT_OFF_DATA
;
1336 SYMBOL_SECTION(sym
) = SECT_OFF_BSS
;
1340 if (processing_gcc_compilation
)
1342 /* GCC 2.x puts the line number in desc. SunOS apparently puts in the
1343 number of bytes occupied by a type or object, which we ignore. */
1344 SYMBOL_LINE(sym
) = desc
;
1348 SYMBOL_LINE(sym
) = 0; /* unknown */
1351 if (is_cplus_marker (string
[0]))
1353 /* Special GNU C++ names. */
1357 SYMBOL_NAME (sym
) = obsavestring ("this", strlen ("this"),
1358 &objfile
-> symbol_obstack
);
1361 case 'v': /* $vtbl_ptr_type */
1362 /* Was: SYMBOL_NAME (sym) = "vptr"; */
1366 SYMBOL_NAME (sym
) = obsavestring ("eh_throw", strlen ("eh_throw"),
1367 &objfile
-> symbol_obstack
);
1371 /* This was an anonymous type that was never fixed up. */
1374 #ifdef STATIC_TRANSFORM_NAME
1376 /* SunPRO (3.0 at least) static variable encoding. */
1381 complain (&unrecognized_cplus_name_complaint
, string
);
1382 goto normal
; /* Do *something* with it */
1385 else if (string
[0] == '#')
1387 /* Special GNU C extension for referencing symbols. */
1391 /* If STRING defines a new reference id, then add it to the
1392 reference map. Else it must be referring to a previously
1393 defined symbol, so add it to the alias list of the previously
1396 refnum
= symbol_reference_defined (&s
);
1398 ref_add (refnum
, sym
, string
, SYMBOL_VALUE (sym
));
1400 if (!resolve_symbol_reference (objfile
, sym
, string
))
1403 /* S..P contains the name of the symbol. We need to store
1404 the correct name into SYMBOL_NAME. */
1410 SYMBOL_NAME (sym
) = (char *)
1411 obstack_alloc (&objfile
-> symbol_obstack
, nlen
);
1412 strncpy (SYMBOL_NAME (sym
), s
, nlen
);
1413 SYMBOL_NAME (sym
)[nlen
] = '\0';
1414 SYMBOL_INIT_DEMANGLED_NAME (sym
, &objfile
->symbol_obstack
);
1417 /* FIXME! Want SYMBOL_NAME (sym) = 0;
1418 Get error if leave name 0. So give it something. */
1421 SYMBOL_NAME (sym
) = (char *)
1422 obstack_alloc (&objfile
-> symbol_obstack
, nlen
);
1423 strncpy (SYMBOL_NAME (sym
), string
, nlen
);
1424 SYMBOL_NAME (sym
)[nlen
] = '\0';
1425 SYMBOL_INIT_DEMANGLED_NAME (sym
, &objfile
->symbol_obstack
);
1428 /* Advance STRING beyond the reference id. */
1434 SYMBOL_LANGUAGE (sym
) = current_subfile
-> language
;
1435 SYMBOL_NAME (sym
) = (char *)
1436 obstack_alloc (&objfile
-> symbol_obstack
, ((p
- string
) + 1));
1437 /* Open-coded memcpy--saves function call time. */
1438 /* FIXME: Does it really? Try replacing with simple strcpy and
1439 try it on an executable with a large symbol table. */
1440 /* FIXME: considering that gcc can open code memcpy anyway, I
1441 doubt it. xoxorich. */
1443 register char *p1
= string
;
1444 register char *p2
= SYMBOL_NAME (sym
);
1452 /* If this symbol is from a C++ compilation, then attempt to cache the
1453 demangled form for future reference. This is a typical time versus
1454 space tradeoff, that was decided in favor of time because it sped up
1455 C++ symbol lookups by a factor of about 20. */
1457 SYMBOL_INIT_DEMANGLED_NAME (sym
, &objfile
->symbol_obstack
);
1461 /* Determine the type of name being defined. */
1463 /* Getting GDB to correctly skip the symbol on an undefined symbol
1464 descriptor and not ever dump core is a very dodgy proposition if
1465 we do things this way. I say the acorn RISC machine can just
1466 fix their compiler. */
1467 /* The Acorn RISC machine's compiler can put out locals that don't
1468 start with "234=" or "(3,4)=", so assume anything other than the
1469 deftypes we know how to handle is a local. */
1470 if (!strchr ("cfFGpPrStTvVXCR", *p
))
1472 if (isdigit (*p
) || *p
== '(' || *p
== '-')
1481 /* c is a special case, not followed by a type-number.
1482 SYMBOL:c=iVALUE for an integer constant symbol.
1483 SYMBOL:c=rVALUE for a floating constant symbol.
1484 SYMBOL:c=eTYPE,INTVALUE for an enum constant symbol.
1485 e.g. "b:c=e6,0" for "const b = blob1"
1486 (where type 6 is defined by "blobs:t6=eblob1:0,blob2:1,;"). */
1489 SYMBOL_CLASS (sym
) = LOC_CONST
;
1490 SYMBOL_TYPE (sym
) = error_type (&p
, objfile
);
1491 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1492 add_symbol_to_list (sym
, &file_symbols
);
1500 double d
= atof (p
);
1503 /* FIXME-if-picky-about-floating-accuracy: Should be using
1504 target arithmetic to get the value. real.c in GCC
1505 probably has the necessary code. */
1507 /* FIXME: lookup_fundamental_type is a hack. We should be
1508 creating a type especially for the type of float constants.
1509 Problem is, what type should it be?
1511 Also, what should the name of this type be? Should we
1512 be using 'S' constants (see stabs.texinfo) instead? */
1514 SYMBOL_TYPE (sym
) = lookup_fundamental_type (objfile
,
1517 obstack_alloc (&objfile
-> symbol_obstack
,
1518 TYPE_LENGTH (SYMBOL_TYPE (sym
)));
1519 store_floating (dbl_valu
, TYPE_LENGTH (SYMBOL_TYPE (sym
)), d
);
1520 SYMBOL_VALUE_BYTES (sym
) = dbl_valu
;
1521 SYMBOL_CLASS (sym
) = LOC_CONST_BYTES
;
1526 /* Defining integer constants this way is kind of silly,
1527 since 'e' constants allows the compiler to give not
1528 only the value, but the type as well. C has at least
1529 int, long, unsigned int, and long long as constant
1530 types; other languages probably should have at least
1531 unsigned as well as signed constants. */
1533 /* We just need one int constant type for all objfiles.
1534 It doesn't depend on languages or anything (arguably its
1535 name should be a language-specific name for a type of
1536 that size, but I'm inclined to say that if the compiler
1537 wants a nice name for the type, it can use 'e'). */
1538 static struct type
*int_const_type
;
1540 /* Yes, this is as long as a *host* int. That is because we
1542 if (int_const_type
== NULL
)
1544 init_type (TYPE_CODE_INT
,
1545 sizeof (int) * HOST_CHAR_BIT
/ TARGET_CHAR_BIT
, 0,
1547 (struct objfile
*)NULL
);
1548 SYMBOL_TYPE (sym
) = int_const_type
;
1549 SYMBOL_VALUE (sym
) = atoi (p
);
1550 SYMBOL_CLASS (sym
) = LOC_CONST
;
1554 /* SYMBOL:c=eTYPE,INTVALUE for a constant symbol whose value
1555 can be represented as integral.
1556 e.g. "b:c=e6,0" for "const b = blob1"
1557 (where type 6 is defined by "blobs:t6=eblob1:0,blob2:1,;"). */
1559 SYMBOL_CLASS (sym
) = LOC_CONST
;
1560 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1564 SYMBOL_TYPE (sym
) = error_type (&p
, objfile
);
1569 /* If the value is too big to fit in an int (perhaps because
1570 it is unsigned), or something like that, we silently get
1571 a bogus value. The type and everything else about it is
1572 correct. Ideally, we should be using whatever we have
1573 available for parsing unsigned and long long values,
1575 SYMBOL_VALUE (sym
) = atoi (p
);
1580 SYMBOL_CLASS (sym
) = LOC_CONST
;
1581 SYMBOL_TYPE (sym
) = error_type (&p
, objfile
);
1584 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1585 add_symbol_to_list (sym
, &file_symbols
);
1589 /* The name of a caught exception. */
1590 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1591 SYMBOL_CLASS (sym
) = LOC_LABEL
;
1592 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1593 SYMBOL_VALUE_ADDRESS (sym
) = valu
;
1594 add_symbol_to_list (sym
, &local_symbols
);
1598 /* A static function definition. */
1599 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1600 SYMBOL_CLASS (sym
) = LOC_BLOCK
;
1601 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1602 add_symbol_to_list (sym
, &file_symbols
);
1603 /* fall into process_function_types. */
1605 process_function_types
:
1606 /* Function result types are described as the result type in stabs.
1607 We need to convert this to the function-returning-type-X type
1608 in GDB. E.g. "int" is converted to "function returning int". */
1609 if (TYPE_CODE (SYMBOL_TYPE (sym
)) != TYPE_CODE_FUNC
)
1610 SYMBOL_TYPE (sym
) = lookup_function_type (SYMBOL_TYPE (sym
));
1612 /* All functions in C++ have prototypes. */
1613 if (SYMBOL_LANGUAGE (sym
) == language_cplus
)
1614 TYPE_FLAGS (SYMBOL_TYPE (sym
)) |= TYPE_FLAG_PROTOTYPED
;
1616 /* fall into process_prototype_types */
1618 process_prototype_types
:
1619 /* Sun acc puts declared types of arguments here. */
1622 struct type
*ftype
= SYMBOL_TYPE (sym
);
1627 /* Obtain a worst case guess for the number of arguments
1628 by counting the semicolons. */
1635 /* Allocate parameter information fields and fill them in. */
1636 TYPE_FIELDS (ftype
) = (struct field
*)
1637 TYPE_ALLOC (ftype
, nsemi
* sizeof (struct field
));
1642 /* A type number of zero indicates the start of varargs.
1643 FIXME: GDB currently ignores vararg functions. */
1644 if (p
[0] == '0' && p
[1] == '\0')
1646 ptype
= read_type (&p
, objfile
);
1648 /* The Sun compilers mark integer arguments, which should
1649 be promoted to the width of the calling conventions, with
1650 a type which references itself. This type is turned into
1651 a TYPE_CODE_VOID type by read_type, and we have to turn
1652 it back into builtin_type_int here.
1653 FIXME: Do we need a new builtin_type_promoted_int_arg ? */
1654 if (TYPE_CODE (ptype
) == TYPE_CODE_VOID
)
1655 ptype
= builtin_type_int
;
1656 TYPE_FIELD_TYPE (ftype
, nparams
++) = ptype
;
1658 TYPE_NFIELDS (ftype
) = nparams
;
1659 TYPE_FLAGS (ftype
) |= TYPE_FLAG_PROTOTYPED
;
1664 /* A global function definition. */
1665 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1666 SYMBOL_CLASS (sym
) = LOC_BLOCK
;
1667 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1668 add_symbol_to_list (sym
, &global_symbols
);
1669 goto process_function_types
;
1672 /* For a class G (global) symbol, it appears that the
1673 value is not correct. It is necessary to search for the
1674 corresponding linker definition to find the value.
1675 These definitions appear at the end of the namelist. */
1676 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1677 SYMBOL_CLASS (sym
) = LOC_STATIC
;
1678 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1679 /* Don't add symbol references to global_sym_chain.
1680 Symbol references don't have valid names and wont't match up with
1681 minimal symbols when the global_sym_chain is relocated.
1682 We'll fixup symbol references when we fixup the defining symbol. */
1683 if (SYMBOL_NAME (sym
) && SYMBOL_NAME (sym
)[0] != '#')
1685 i
= hashname (SYMBOL_NAME (sym
));
1686 SYMBOL_VALUE_CHAIN (sym
) = global_sym_chain
[i
];
1687 global_sym_chain
[i
] = sym
;
1689 add_symbol_to_list (sym
, &global_symbols
);
1692 /* This case is faked by a conditional above,
1693 when there is no code letter in the dbx data.
1694 Dbx data never actually contains 'l'. */
1697 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1698 SYMBOL_CLASS (sym
) = LOC_LOCAL
;
1699 SYMBOL_VALUE (sym
) = valu
;
1700 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1701 add_symbol_to_list (sym
, &local_symbols
);
1706 /* pF is a two-letter code that means a function parameter in Fortran.
1707 The type-number specifies the type of the return value.
1708 Translate it into a pointer-to-function type. */
1712 = lookup_pointer_type
1713 (lookup_function_type (read_type (&p
, objfile
)));
1716 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1718 /* Normally this is a parameter, a LOC_ARG. On the i960, it
1719 can also be a LOC_LOCAL_ARG depending on symbol type. */
1720 #ifndef DBX_PARM_SYMBOL_CLASS
1721 #define DBX_PARM_SYMBOL_CLASS(type) LOC_ARG
1724 SYMBOL_CLASS (sym
) = DBX_PARM_SYMBOL_CLASS (type
);
1725 SYMBOL_VALUE (sym
) = valu
;
1726 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1727 add_symbol_to_list (sym
, &local_symbols
);
1729 if (TARGET_BYTE_ORDER
!= BIG_ENDIAN
)
1731 /* On little-endian machines, this crud is never necessary,
1732 and, if the extra bytes contain garbage, is harmful. */
1736 /* If it's gcc-compiled, if it says `short', believe it. */
1737 if (processing_gcc_compilation
|| BELIEVE_PCC_PROMOTION
)
1740 if (!BELIEVE_PCC_PROMOTION
)
1742 /* This is the signed type which arguments get promoted to. */
1743 static struct type
*pcc_promotion_type
;
1744 /* This is the unsigned type which arguments get promoted to. */
1745 static struct type
*pcc_unsigned_promotion_type
;
1747 /* Call it "int" because this is mainly C lossage. */
1748 if (pcc_promotion_type
== NULL
)
1749 pcc_promotion_type
=
1750 init_type (TYPE_CODE_INT
, TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
1753 if (pcc_unsigned_promotion_type
== NULL
)
1754 pcc_unsigned_promotion_type
=
1755 init_type (TYPE_CODE_INT
, TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
1756 TYPE_FLAG_UNSIGNED
, "unsigned int", NULL
);
1758 if (BELIEVE_PCC_PROMOTION_TYPE
)
1760 /* This is defined on machines (e.g. sparc) where we
1761 should believe the type of a PCC 'short' argument,
1762 but shouldn't believe the address (the address is the
1763 address of the corresponding int).
1765 My guess is that this correction, as opposed to
1766 changing the parameter to an 'int' (as done below,
1767 for PCC on most machines), is the right thing to do
1768 on all machines, but I don't want to risk breaking
1769 something that already works. On most PCC machines,
1770 the sparc problem doesn't come up because the calling
1771 function has to zero the top bytes (not knowing
1772 whether the called function wants an int or a short),
1773 so there is little practical difference between an
1774 int and a short (except perhaps what happens when the
1775 GDB user types "print short_arg = 0x10000;").
1777 Hacked for SunOS 4.1 by gnu@cygnus.com. In 4.1, the
1778 compiler actually produces the correct address (we
1779 don't need to fix it up). I made this code adapt so
1780 that it will offset the symbol if it was pointing at
1781 an int-aligned location and not otherwise. This way
1782 you can use the same gdb for 4.0.x and 4.1 systems.
1784 If the parameter is shorter than an int, and is
1785 integral (e.g. char, short, or unsigned equivalent),
1786 and is claimed to be passed on an integer boundary,
1787 don't believe it! Offset the parameter's address to
1788 the tail-end of that integer. */
1790 if (TYPE_LENGTH (SYMBOL_TYPE (sym
)) < TYPE_LENGTH (pcc_promotion_type
)
1791 && TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_INT
1792 && 0 == SYMBOL_VALUE (sym
) % TYPE_LENGTH (pcc_promotion_type
))
1794 SYMBOL_VALUE (sym
) += TYPE_LENGTH (pcc_promotion_type
)
1795 - TYPE_LENGTH (SYMBOL_TYPE (sym
));
1801 /* If PCC says a parameter is a short or a char,
1802 it is really an int. */
1803 if (TYPE_LENGTH (SYMBOL_TYPE (sym
)) < TYPE_LENGTH (pcc_promotion_type
)
1804 && TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_INT
)
1807 TYPE_UNSIGNED (SYMBOL_TYPE (sym
))
1808 ? pcc_unsigned_promotion_type
1809 : pcc_promotion_type
;
1816 /* acc seems to use P to declare the prototypes of functions that
1817 are referenced by this file. gdb is not prepared to deal
1818 with this extra information. FIXME, it ought to. */
1821 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1822 goto process_prototype_types
;
1827 /* Parameter which is in a register. */
1828 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1829 SYMBOL_CLASS (sym
) = LOC_REGPARM
;
1830 SYMBOL_VALUE (sym
) = STAB_REG_TO_REGNUM (valu
);
1831 if (SYMBOL_VALUE (sym
) >= NUM_REGS
)
1833 complain (®_value_complaint
, SYMBOL_VALUE (sym
), NUM_REGS
,
1834 SYMBOL_SOURCE_NAME (sym
));
1835 SYMBOL_VALUE (sym
) = SP_REGNUM
; /* Known safe, though useless */
1837 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1838 add_symbol_to_list (sym
, &local_symbols
);
1842 /* Register variable (either global or local). */
1843 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1844 SYMBOL_CLASS (sym
) = LOC_REGISTER
;
1845 SYMBOL_VALUE (sym
) = STAB_REG_TO_REGNUM (valu
);
1846 if (SYMBOL_VALUE (sym
) >= NUM_REGS
)
1848 complain (®_value_complaint
, SYMBOL_VALUE (sym
), NUM_REGS
,
1849 SYMBOL_SOURCE_NAME (sym
));
1850 SYMBOL_VALUE (sym
) = SP_REGNUM
; /* Known safe, though useless */
1852 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1853 if (within_function
)
1855 /* Sun cc uses a pair of symbols, one 'p' and one 'r' with the same
1856 name to represent an argument passed in a register.
1857 GCC uses 'P' for the same case. So if we find such a symbol pair
1858 we combine it into one 'P' symbol. For Sun cc we need to do this
1859 regardless of REG_STRUCT_HAS_ADDR, because the compiler puts out
1860 the 'p' symbol even if it never saves the argument onto the stack.
1862 On most machines, we want to preserve both symbols, so that
1863 we can still get information about what is going on with the
1864 stack (VAX for computing args_printed, using stack slots instead
1865 of saved registers in backtraces, etc.).
1867 Note that this code illegally combines
1868 main(argc) struct foo argc; { register struct foo argc; }
1869 but this case is considered pathological and causes a warning
1870 from a decent compiler. */
1873 && local_symbols
->nsyms
> 0
1874 #ifndef USE_REGISTER_NOT_ARG
1875 && REG_STRUCT_HAS_ADDR (processing_gcc_compilation
,
1877 && (TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_STRUCT
1878 || TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_UNION
1879 || TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_SET
1880 || TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_BITSTRING
)
1884 struct symbol
*prev_sym
;
1885 prev_sym
= local_symbols
->symbol
[local_symbols
->nsyms
- 1];
1886 if ((SYMBOL_CLASS (prev_sym
) == LOC_REF_ARG
1887 || SYMBOL_CLASS (prev_sym
) == LOC_ARG
)
1888 && STREQ (SYMBOL_NAME (prev_sym
), SYMBOL_NAME(sym
)))
1890 SYMBOL_CLASS (prev_sym
) = LOC_REGPARM
;
1891 /* Use the type from the LOC_REGISTER; that is the type
1892 that is actually in that register. */
1893 SYMBOL_TYPE (prev_sym
) = SYMBOL_TYPE (sym
);
1894 SYMBOL_VALUE (prev_sym
) = SYMBOL_VALUE (sym
);
1899 add_symbol_to_list (sym
, &local_symbols
);
1902 add_symbol_to_list (sym
, &file_symbols
);
1906 /* Static symbol at top level of file */
1907 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1908 SYMBOL_CLASS (sym
) = LOC_STATIC
;
1909 SYMBOL_VALUE_ADDRESS (sym
) = valu
;
1910 #ifdef STATIC_TRANSFORM_NAME
1911 if (IS_STATIC_TRANSFORM_NAME (SYMBOL_NAME (sym
)))
1913 struct minimal_symbol
*msym
;
1914 msym
= lookup_minimal_symbol (SYMBOL_NAME (sym
), NULL
, objfile
);
1917 SYMBOL_NAME (sym
) = STATIC_TRANSFORM_NAME (SYMBOL_NAME (sym
));
1918 SYMBOL_VALUE_ADDRESS (sym
) = SYMBOL_VALUE_ADDRESS (msym
);
1922 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1923 add_symbol_to_list (sym
, &file_symbols
);
1927 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
1929 /* For a nameless type, we don't want a create a symbol, thus we
1930 did not use `sym'. Return without further processing. */
1931 if (nameless
) return NULL
;
1933 SYMBOL_CLASS (sym
) = LOC_TYPEDEF
;
1934 SYMBOL_VALUE (sym
) = valu
;
1935 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
1936 /* C++ vagaries: we may have a type which is derived from
1937 a base type which did not have its name defined when the
1938 derived class was output. We fill in the derived class's
1939 base part member's name here in that case. */
1940 if (TYPE_NAME (SYMBOL_TYPE (sym
)) != NULL
)
1941 if ((TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_STRUCT
1942 || TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_UNION
)
1943 && TYPE_N_BASECLASSES (SYMBOL_TYPE (sym
)))
1946 for (j
= TYPE_N_BASECLASSES (SYMBOL_TYPE (sym
)) - 1; j
>= 0; j
--)
1947 if (TYPE_BASECLASS_NAME (SYMBOL_TYPE (sym
), j
) == 0)
1948 TYPE_BASECLASS_NAME (SYMBOL_TYPE (sym
), j
) =
1949 type_name_no_tag (TYPE_BASECLASS (SYMBOL_TYPE (sym
), j
));
1952 if (TYPE_NAME (SYMBOL_TYPE (sym
)) == NULL
)
1954 /* gcc-2.6 or later (when using -fvtable-thunks)
1955 emits a unique named type for a vtable entry.
1956 Some gdb code depends on that specific name. */
1957 extern const char vtbl_ptr_name
[];
1959 if ((TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_PTR
1960 && strcmp (SYMBOL_NAME (sym
), vtbl_ptr_name
))
1961 || TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_FUNC
)
1963 /* If we are giving a name to a type such as "pointer to
1964 foo" or "function returning foo", we better not set
1965 the TYPE_NAME. If the program contains "typedef char
1966 *caddr_t;", we don't want all variables of type char
1967 * to print as caddr_t. This is not just a
1968 consequence of GDB's type management; PCC and GCC (at
1969 least through version 2.4) both output variables of
1970 either type char * or caddr_t with the type number
1971 defined in the 't' symbol for caddr_t. If a future
1972 compiler cleans this up it GDB is not ready for it
1973 yet, but if it becomes ready we somehow need to
1974 disable this check (without breaking the PCC/GCC2.4
1979 Fortunately, this check seems not to be necessary
1980 for anything except pointers or functions. */
1983 TYPE_NAME (SYMBOL_TYPE (sym
)) = SYMBOL_NAME (sym
);
1986 add_symbol_to_list (sym
, &file_symbols
);
1990 /* Struct, union, or enum tag. For GNU C++, this can be be followed
1991 by 't' which means we are typedef'ing it as well. */
1992 synonym
= *p
== 't';
1996 /* The semantics of C++ state that "struct foo { ... }" also defines
1997 a typedef for "foo". Unfortunately, cfront never makes the typedef
1998 when translating C++ into C. We make the typedef here so that
1999 "ptype foo" works as expected for cfront translated code. */
2000 else if (current_subfile
->language
== language_cplus
)
2003 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
2005 /* For a nameless type, we don't want a create a symbol, thus we
2006 did not use `sym'. Return without further processing. */
2007 if (nameless
) return NULL
;
2009 SYMBOL_CLASS (sym
) = LOC_TYPEDEF
;
2010 SYMBOL_VALUE (sym
) = valu
;
2011 SYMBOL_NAMESPACE (sym
) = STRUCT_NAMESPACE
;
2012 if (TYPE_TAG_NAME (SYMBOL_TYPE (sym
)) == 0)
2013 TYPE_TAG_NAME (SYMBOL_TYPE (sym
))
2014 = obconcat (&objfile
-> type_obstack
, "", "", SYMBOL_NAME (sym
));
2015 add_symbol_to_list (sym
, &file_symbols
);
2019 /* Clone the sym and then modify it. */
2020 register struct symbol
*typedef_sym
= (struct symbol
*)
2021 obstack_alloc (&objfile
-> symbol_obstack
, sizeof (struct symbol
));
2022 *typedef_sym
= *sym
;
2023 SYMBOL_CLASS (typedef_sym
) = LOC_TYPEDEF
;
2024 SYMBOL_VALUE (typedef_sym
) = valu
;
2025 SYMBOL_NAMESPACE (typedef_sym
) = VAR_NAMESPACE
;
2026 if (TYPE_NAME (SYMBOL_TYPE (sym
)) == 0)
2027 TYPE_NAME (SYMBOL_TYPE (sym
))
2028 = obconcat (&objfile
-> type_obstack
, "", "", SYMBOL_NAME (sym
));
2029 add_symbol_to_list (typedef_sym
, &file_symbols
);
2034 /* Static symbol of local scope */
2035 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
2036 SYMBOL_CLASS (sym
) = LOC_STATIC
;
2037 SYMBOL_VALUE_ADDRESS (sym
) = valu
;
2038 #ifdef STATIC_TRANSFORM_NAME
2039 if (IS_STATIC_TRANSFORM_NAME (SYMBOL_NAME (sym
)))
2041 struct minimal_symbol
*msym
;
2042 msym
= lookup_minimal_symbol (SYMBOL_NAME (sym
), NULL
, objfile
);
2045 SYMBOL_NAME (sym
) = STATIC_TRANSFORM_NAME (SYMBOL_NAME (sym
));
2046 SYMBOL_VALUE_ADDRESS (sym
) = SYMBOL_VALUE_ADDRESS (msym
);
2050 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
2052 add_symbol_to_list (sym
, &global_symbols
);
2054 add_symbol_to_list (sym
, &local_symbols
);
2058 /* Reference parameter */
2059 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
2060 SYMBOL_CLASS (sym
) = LOC_REF_ARG
;
2061 SYMBOL_VALUE (sym
) = valu
;
2062 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
2063 add_symbol_to_list (sym
, &local_symbols
);
2067 /* Reference parameter which is in a register. */
2068 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
2069 SYMBOL_CLASS (sym
) = LOC_REGPARM_ADDR
;
2070 SYMBOL_VALUE (sym
) = STAB_REG_TO_REGNUM (valu
);
2071 if (SYMBOL_VALUE (sym
) >= NUM_REGS
)
2073 complain (®_value_complaint
, SYMBOL_VALUE (sym
), NUM_REGS
,
2074 SYMBOL_SOURCE_NAME (sym
));
2075 SYMBOL_VALUE (sym
) = SP_REGNUM
; /* Known safe, though useless */
2077 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
2078 add_symbol_to_list (sym
, &local_symbols
);
2082 /* This is used by Sun FORTRAN for "function result value".
2083 Sun claims ("dbx and dbxtool interfaces", 2nd ed)
2084 that Pascal uses it too, but when I tried it Pascal used
2085 "x:3" (local symbol) instead. */
2086 SYMBOL_TYPE (sym
) = read_type (&p
, objfile
);
2087 SYMBOL_CLASS (sym
) = LOC_LOCAL
;
2088 SYMBOL_VALUE (sym
) = valu
;
2089 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
2090 add_symbol_to_list (sym
, &local_symbols
);
2093 /* New code added to support cfront stabs strings.
2094 Note: case 'P' already handled above */
2096 /* Cfront type continuation coming up!
2097 Find the original definition and add to it.
2098 We'll have to do this for the typedef too,
2099 since we cloned the symbol to define a type in read_type.
2100 Stabs info examples:
2102 foo__1CFv :ZtF (first def foo__1CFv:F(0,3);(0,24))
2103 C:ZsC;;__ct__1CFv func1__1CFv func2__1CFv ... ;;;
2104 where C is the name of the class.
2105 Unfortunately, we can't lookup the original symbol yet 'cuz
2106 we haven't finished reading all the symbols.
2107 Instead, we save it for processing later */
2108 process_later (sym
, p
, resolve_cfront_continuation
);
2109 SYMBOL_TYPE (sym
) = error_type (&p
, objfile
); /* FIXME! change later */
2110 SYMBOL_CLASS (sym
) = LOC_CONST
;
2111 SYMBOL_VALUE (sym
) = 0;
2112 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
2113 /* Don't add to list - we'll delete it later when
2114 we add the continuation to the real sym */
2116 /* End of new code added to support cfront stabs strings */
2119 SYMBOL_TYPE (sym
) = error_type (&p
, objfile
);
2120 SYMBOL_CLASS (sym
) = LOC_CONST
;
2121 SYMBOL_VALUE (sym
) = 0;
2122 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
2123 add_symbol_to_list (sym
, &file_symbols
);
2127 /* When passing structures to a function, some systems sometimes pass
2128 the address in a register, not the structure itself. */
2130 if (REG_STRUCT_HAS_ADDR (processing_gcc_compilation
, SYMBOL_TYPE (sym
))
2131 && (SYMBOL_CLASS (sym
) == LOC_REGPARM
|| SYMBOL_CLASS (sym
) == LOC_ARG
))
2133 struct type
*symbol_type
= check_typedef (SYMBOL_TYPE (sym
));
2135 if ((TYPE_CODE (symbol_type
) == TYPE_CODE_STRUCT
)
2136 || (TYPE_CODE (symbol_type
) == TYPE_CODE_UNION
)
2137 || (TYPE_CODE (symbol_type
) == TYPE_CODE_BITSTRING
)
2138 || (TYPE_CODE (symbol_type
) == TYPE_CODE_SET
))
2140 /* If REG_STRUCT_HAS_ADDR yields non-zero we have to convert
2141 LOC_REGPARM to LOC_REGPARM_ADDR for structures and unions. */
2142 if (SYMBOL_CLASS (sym
) == LOC_REGPARM
)
2143 SYMBOL_CLASS (sym
) = LOC_REGPARM_ADDR
;
2144 /* Likewise for converting LOC_ARG to LOC_REF_ARG (for the 7th
2145 and subsequent arguments on the sparc, for example). */
2146 else if (SYMBOL_CLASS (sym
) == LOC_ARG
)
2147 SYMBOL_CLASS (sym
) = LOC_REF_ARG
;
2151 /* Is there more to parse? For example LRS/alias information? */
2152 while (*p
&& *p
== ';')
2155 if (*p
&& p
[0] == 'l' && p
[1] == '(')
2157 /* GNU extensions for live range splitting may be appended to
2158 the end of the stab string. eg. "l(#1,#2);l(#3,#5)" */
2160 /* Resolve the live range and add it to SYM's live range list. */
2161 if (!resolve_live_range (objfile
, sym
, p
))
2164 /* Find end of live range info. */
2165 p
= strchr (p
, ')');
2166 if (!*p
|| *p
!= ')')
2168 complain (&lrs_general_complaint
, "live range format not recognized");
2177 /* Add the live range found in P to the symbol SYM in objfile OBJFILE. Returns
2178 non-zero on success, zero otherwise. */
2181 resolve_live_range (objfile
, sym
, p
)
2182 struct objfile
*objfile
;
2187 CORE_ADDR start
, end
;
2189 /* Sanity check the beginning of the stabs string. */
2190 if (!*p
|| *p
!= 'l')
2192 complain (&lrs_general_complaint
, "live range string 1");
2197 if (!*p
|| *p
!= '(')
2199 complain (&lrs_general_complaint
, "live range string 2");
2204 /* Get starting value of range and advance P past the reference id.
2206 ?!? In theory, the process_reference should never fail, but we should
2207 catch that case just in case the compiler scrogged the stabs. */
2208 refnum
= process_reference (&p
);
2209 start
= ref_search_value (refnum
);
2212 complain (&lrs_general_complaint
, "Live range symbol not found 1");
2216 if (!*p
|| *p
!= ',')
2218 complain (&lrs_general_complaint
, "live range string 3");
2223 /* Get ending value of range and advance P past the reference id.
2225 ?!? In theory, the process_reference should never fail, but we should
2226 catch that case just in case the compiler scrogged the stabs. */
2227 refnum
= process_reference (&p
);
2228 end
= ref_search_value (refnum
);
2231 complain (&lrs_general_complaint
, "Live range symbol not found 2");
2235 if (!*p
|| *p
!= ')')
2237 complain (&lrs_general_complaint
, "live range string 4");
2241 /* Now that we know the bounds of the range, add it to the
2243 add_live_range (objfile
, sym
, start
, end
);
2248 /* Add a new live range defined by START and END to the symbol SYM
2249 in objfile OBJFILE. */
2252 add_live_range (objfile
, sym
, start
, end
)
2253 struct objfile
*objfile
;
2255 CORE_ADDR start
, end
;
2257 struct range_list
*r
, *rs
;
2261 complain (&lrs_general_complaint
, "end of live range follows start");
2265 /* Alloc new live range structure. */
2266 r
= (struct range_list
*)
2267 obstack_alloc (&objfile
->type_obstack
,
2268 sizeof (struct range_list
));
2273 /* Append this range to the symbol's range list. */
2274 if (!SYMBOL_RANGES (sym
))
2275 SYMBOL_RANGES (sym
) = r
;
2278 /* Get the last range for the symbol. */
2279 for (rs
= SYMBOL_RANGES (sym
); rs
->next
; rs
= rs
->next
)
2286 /* Skip rest of this symbol and return an error type.
2288 General notes on error recovery: error_type always skips to the
2289 end of the symbol (modulo cretinous dbx symbol name continuation).
2290 Thus code like this:
2292 if (*(*pp)++ != ';')
2293 return error_type (pp, objfile);
2295 is wrong because if *pp starts out pointing at '\0' (typically as the
2296 result of an earlier error), it will be incremented to point to the
2297 start of the next symbol, which might produce strange results, at least
2298 if you run off the end of the string table. Instead use
2301 return error_type (pp, objfile);
2307 foo = error_type (pp, objfile);
2311 And in case it isn't obvious, the point of all this hair is so the compiler
2312 can define new types and new syntaxes, and old versions of the
2313 debugger will be able to read the new symbol tables. */
2315 static struct type
*
2316 error_type (pp
, objfile
)
2318 struct objfile
*objfile
;
2320 complain (&error_type_complaint
);
2323 /* Skip to end of symbol. */
2324 while (**pp
!= '\0')
2329 /* Check for and handle cretinous dbx symbol name continuation! */
2330 if ((*pp
)[-1] == '\\' || (*pp
)[-1] == '?')
2332 *pp
= next_symbol_text (objfile
);
2339 return (builtin_type_error
);
2343 /* Read type information or a type definition; return the type. Even
2344 though this routine accepts either type information or a type
2345 definition, the distinction is relevant--some parts of stabsread.c
2346 assume that type information starts with a digit, '-', or '(' in
2347 deciding whether to call read_type. */
2350 read_type (pp
, objfile
)
2352 struct objfile
*objfile
;
2354 register struct type
*type
= 0;
2357 char type_descriptor
;
2359 /* Size in bits of type if specified by a type attribute, or -1 if
2360 there is no size attribute. */
2363 /* Used to distinguish string and bitstring from char-array and set. */
2366 /* Read type number if present. The type number may be omitted.
2367 for instance in a two-dimensional array declared with type
2368 "ar1;1;10;ar1;1;10;4". */
2369 if ((**pp
>= '0' && **pp
<= '9')
2373 if (read_type_number (pp
, typenums
) != 0)
2374 return error_type (pp
, objfile
);
2376 /* Type is not being defined here. Either it already exists,
2377 or this is a forward reference to it. dbx_alloc_type handles
2380 return dbx_alloc_type (typenums
, objfile
);
2382 /* Type is being defined here. */
2384 Also skip the type descriptor - we get it below with (*pp)[-1]. */
2389 /* 'typenums=' not present, type is anonymous. Read and return
2390 the definition, but don't put it in the type vector. */
2391 typenums
[0] = typenums
[1] = -1;
2396 type_descriptor
= (*pp
)[-1];
2397 switch (type_descriptor
)
2401 enum type_code code
;
2403 /* Used to index through file_symbols. */
2404 struct pending
*ppt
;
2407 /* Name including "struct", etc. */
2411 char *from
, *to
, *p
, *q1
, *q2
;
2413 /* Set the type code according to the following letter. */
2417 code
= TYPE_CODE_STRUCT
;
2420 code
= TYPE_CODE_UNION
;
2423 code
= TYPE_CODE_ENUM
;
2427 /* Complain and keep going, so compilers can invent new
2428 cross-reference types. */
2429 static struct complaint msg
=
2430 {"Unrecognized cross-reference type `%c'", 0, 0};
2431 complain (&msg
, (*pp
)[0]);
2432 code
= TYPE_CODE_STRUCT
;
2437 q1
= strchr (*pp
, '<');
2438 p
= strchr (*pp
, ':');
2440 return error_type (pp
, objfile
);
2441 if (q1
&& p
> q1
&& p
[1] == ':')
2443 int nesting_level
= 0;
2444 for (q2
= q1
; *q2
; q2
++)
2448 else if (*q2
== '>')
2450 else if (*q2
== ':' && nesting_level
== 0)
2455 return error_type (pp
, objfile
);
2458 (char *)obstack_alloc (&objfile
->type_obstack
, p
- *pp
+ 1);
2460 /* Copy the name. */
2466 /* Set the pointer ahead of the name which we just read, and
2471 /* Now check to see whether the type has already been
2472 declared. This was written for arrays of cross-referenced
2473 types before we had TYPE_CODE_TARGET_STUBBED, so I'm pretty
2474 sure it is not necessary anymore. But it might be a good
2475 idea, to save a little memory. */
2477 for (ppt
= file_symbols
; ppt
; ppt
= ppt
->next
)
2478 for (i
= 0; i
< ppt
->nsyms
; i
++)
2480 struct symbol
*sym
= ppt
->symbol
[i
];
2482 if (SYMBOL_CLASS (sym
) == LOC_TYPEDEF
2483 && SYMBOL_NAMESPACE (sym
) == STRUCT_NAMESPACE
2484 && (TYPE_CODE (SYMBOL_TYPE (sym
)) == code
)
2485 && STREQ (SYMBOL_NAME (sym
), type_name
))
2487 obstack_free (&objfile
-> type_obstack
, type_name
);
2488 type
= SYMBOL_TYPE (sym
);
2493 /* Didn't find the type to which this refers, so we must
2494 be dealing with a forward reference. Allocate a type
2495 structure for it, and keep track of it so we can
2496 fill in the rest of the fields when we get the full
2498 type
= dbx_alloc_type (typenums
, objfile
);
2499 TYPE_CODE (type
) = code
;
2500 TYPE_TAG_NAME (type
) = type_name
;
2501 INIT_CPLUS_SPECIFIC(type
);
2502 TYPE_FLAGS (type
) |= TYPE_FLAG_STUB
;
2504 add_undefined_type (type
);
2508 case '-': /* RS/6000 built-in type */
2522 /* We deal with something like t(1,2)=(3,4)=... which
2523 the Lucid compiler and recent gcc versions (post 2.7.3) use. */
2525 /* Allocate and enter the typedef type first.
2526 This handles recursive types. */
2527 type
= dbx_alloc_type (typenums
, objfile
);
2528 TYPE_CODE (type
) = TYPE_CODE_TYPEDEF
;
2529 { struct type
*xtype
= read_type (pp
, objfile
);
2532 /* It's being defined as itself. That means it is "void". */
2533 TYPE_CODE (type
) = TYPE_CODE_VOID
;
2534 TYPE_LENGTH (type
) = 1;
2536 else if (type_size
>= 0 || is_string
)
2539 TYPE_NAME (type
) = NULL
;
2540 TYPE_TAG_NAME (type
) = NULL
;
2544 TYPE_FLAGS (type
) |= TYPE_FLAG_TARGET_STUB
;
2545 TYPE_TARGET_TYPE (type
) = xtype
;
2550 /* In the following types, we must be sure to overwrite any existing
2551 type that the typenums refer to, rather than allocating a new one
2552 and making the typenums point to the new one. This is because there
2553 may already be pointers to the existing type (if it had been
2554 forward-referenced), and we must change it to a pointer, function,
2555 reference, or whatever, *in-place*. */
2558 type1
= read_type (pp
, objfile
);
2559 type
= make_pointer_type (type1
, dbx_lookup_type (typenums
));
2562 case '&': /* Reference to another type */
2563 type1
= read_type (pp
, objfile
);
2564 type
= make_reference_type (type1
, dbx_lookup_type (typenums
));
2567 case 'f': /* Function returning another type */
2568 if (os9k_stabs
&& **pp
== '(')
2570 /* Function prototype; parse it.
2571 We must conditionalize this on os9k_stabs because otherwise
2572 it could be confused with a Sun-style (1,3) typenumber
2578 t
= read_type (pp
, objfile
);
2579 if (**pp
== ',') ++*pp
;
2582 type1
= read_type (pp
, objfile
);
2583 type
= make_function_type (type1
, dbx_lookup_type (typenums
));
2586 case 'k': /* Const qualifier on some type (Sun) */
2587 case 'c': /* Const qualifier on some type (OS9000) */
2588 /* Because 'c' means other things to AIX and 'k' is perfectly good,
2589 only accept 'c' in the os9k_stabs case. */
2590 if (type_descriptor
== 'c' && !os9k_stabs
)
2591 return error_type (pp
, objfile
);
2592 type
= read_type (pp
, objfile
);
2593 /* FIXME! For now, we ignore const and volatile qualifiers. */
2596 case 'B': /* Volatile qual on some type (Sun) */
2597 case 'i': /* Volatile qual on some type (OS9000) */
2598 /* Because 'i' means other things to AIX and 'B' is perfectly good,
2599 only accept 'i' in the os9k_stabs case. */
2600 if (type_descriptor
== 'i' && !os9k_stabs
)
2601 return error_type (pp
, objfile
);
2602 type
= read_type (pp
, objfile
);
2603 /* FIXME! For now, we ignore const and volatile qualifiers. */
2607 if (isdigit (**pp
) || **pp
== '(' || **pp
== '-')
2608 { /* Member (class & variable) type */
2609 /* FIXME -- we should be doing smash_to_XXX types here. */
2611 struct type
*domain
= read_type (pp
, objfile
);
2612 struct type
*memtype
;
2615 /* Invalid member type data format. */
2616 return error_type (pp
, objfile
);
2619 memtype
= read_type (pp
, objfile
);
2620 type
= dbx_alloc_type (typenums
, objfile
);
2621 smash_to_member_type (type
, domain
, memtype
);
2623 else /* type attribute */
2626 /* Skip to the semicolon. */
2627 while (**pp
!= ';' && **pp
!= '\0')
2630 return error_type (pp
, objfile
);
2632 ++*pp
; /* Skip the semicolon. */
2637 type_size
= atoi (attr
+ 1);
2647 /* Ignore unrecognized type attributes, so future compilers
2648 can invent new ones. */
2656 case '#': /* Method (class & fn) type */
2657 if ((*pp
)[0] == '#')
2659 /* We'll get the parameter types from the name. */
2660 struct type
*return_type
;
2663 return_type
= read_type (pp
, objfile
);
2664 if (*(*pp
)++ != ';')
2665 complain (&invalid_member_complaint
, symnum
);
2666 type
= allocate_stub_method (return_type
);
2667 if (typenums
[0] != -1)
2668 *dbx_lookup_type (typenums
) = type
;
2672 struct type
*domain
= read_type (pp
, objfile
);
2673 struct type
*return_type
;
2677 /* Invalid member type data format. */
2678 return error_type (pp
, objfile
);
2682 return_type
= read_type (pp
, objfile
);
2683 args
= read_args (pp
, ';', objfile
);
2684 type
= dbx_alloc_type (typenums
, objfile
);
2685 smash_to_method_type (type
, domain
, return_type
, args
);
2689 case 'r': /* Range type */
2690 type
= read_range_type (pp
, typenums
, objfile
);
2691 if (typenums
[0] != -1)
2692 *dbx_lookup_type (typenums
) = type
;
2697 /* Const and volatile qualified type. */
2698 type
= read_type (pp
, objfile
);
2701 /* Sun ACC builtin int type */
2702 type
= read_sun_builtin_type (pp
, typenums
, objfile
);
2703 if (typenums
[0] != -1)
2704 *dbx_lookup_type (typenums
) = type
;
2708 case 'R': /* Sun ACC builtin float type */
2709 type
= read_sun_floating_type (pp
, typenums
, objfile
);
2710 if (typenums
[0] != -1)
2711 *dbx_lookup_type (typenums
) = type
;
2714 case 'e': /* Enumeration type */
2715 type
= dbx_alloc_type (typenums
, objfile
);
2716 type
= read_enum_type (pp
, type
, objfile
);
2717 if (typenums
[0] != -1)
2718 *dbx_lookup_type (typenums
) = type
;
2721 case 's': /* Struct type */
2722 case 'u': /* Union type */
2723 type
= dbx_alloc_type (typenums
, objfile
);
2724 switch (type_descriptor
)
2727 TYPE_CODE (type
) = TYPE_CODE_STRUCT
;
2730 TYPE_CODE (type
) = TYPE_CODE_UNION
;
2733 type
= read_struct_type (pp
, type
, objfile
);
2736 case 'a': /* Array type */
2738 return error_type (pp
, objfile
);
2741 type
= dbx_alloc_type (typenums
, objfile
);
2742 type
= read_array_type (pp
, type
, objfile
);
2744 TYPE_CODE (type
) = TYPE_CODE_STRING
;
2748 type1
= read_type (pp
, objfile
);
2749 type
= create_set_type ((struct type
*) NULL
, type1
);
2751 TYPE_CODE (type
) = TYPE_CODE_BITSTRING
;
2752 if (typenums
[0] != -1)
2753 *dbx_lookup_type (typenums
) = type
;
2757 --*pp
; /* Go back to the symbol in error */
2758 /* Particularly important if it was \0! */
2759 return error_type (pp
, objfile
);
2764 warning ("GDB internal error, type is NULL in stabsread.c\n");
2765 return error_type (pp
, objfile
);
2768 /* Size specified in a type attribute overrides any other size. */
2769 if (type_size
!= -1)
2770 TYPE_LENGTH (type
) = (type_size
+ TARGET_CHAR_BIT
- 1) / TARGET_CHAR_BIT
;
2775 /* RS/6000 xlc/dbx combination uses a set of builtin types, starting from -1.
2776 Return the proper type node for a given builtin type number. */
2778 static struct type
*
2779 rs6000_builtin_type (typenum
)
2782 /* We recognize types numbered from -NUMBER_RECOGNIZED to -1. */
2783 #define NUMBER_RECOGNIZED 34
2784 /* This includes an empty slot for type number -0. */
2785 static struct type
*negative_types
[NUMBER_RECOGNIZED
+ 1];
2786 struct type
*rettype
= NULL
;
2788 if (typenum
>= 0 || typenum
< -NUMBER_RECOGNIZED
)
2790 complain (&rs6000_builtin_complaint
, typenum
);
2791 return builtin_type_error
;
2793 if (negative_types
[-typenum
] != NULL
)
2794 return negative_types
[-typenum
];
2796 #if TARGET_CHAR_BIT != 8
2797 #error This code wrong for TARGET_CHAR_BIT not 8
2798 /* These definitions all assume that TARGET_CHAR_BIT is 8. I think
2799 that if that ever becomes not true, the correct fix will be to
2800 make the size in the struct type to be in bits, not in units of
2807 /* The size of this and all the other types are fixed, defined
2808 by the debugging format. If there is a type called "int" which
2809 is other than 32 bits, then it should use a new negative type
2810 number (or avoid negative type numbers for that case).
2811 See stabs.texinfo. */
2812 rettype
= init_type (TYPE_CODE_INT
, 4, 0, "int", NULL
);
2815 rettype
= init_type (TYPE_CODE_INT
, 1, 0, "char", NULL
);
2818 rettype
= init_type (TYPE_CODE_INT
, 2, 0, "short", NULL
);
2821 rettype
= init_type (TYPE_CODE_INT
, 4, 0, "long", NULL
);
2824 rettype
= init_type (TYPE_CODE_INT
, 1, TYPE_FLAG_UNSIGNED
,
2825 "unsigned char", NULL
);
2828 rettype
= init_type (TYPE_CODE_INT
, 1, 0, "signed char", NULL
);
2831 rettype
= init_type (TYPE_CODE_INT
, 2, TYPE_FLAG_UNSIGNED
,
2832 "unsigned short", NULL
);
2835 rettype
= init_type (TYPE_CODE_INT
, 4, TYPE_FLAG_UNSIGNED
,
2836 "unsigned int", NULL
);
2839 rettype
= init_type (TYPE_CODE_INT
, 4, TYPE_FLAG_UNSIGNED
,
2842 rettype
= init_type (TYPE_CODE_INT
, 4, TYPE_FLAG_UNSIGNED
,
2843 "unsigned long", NULL
);
2846 rettype
= init_type (TYPE_CODE_VOID
, 1, 0, "void", NULL
);
2849 /* IEEE single precision (32 bit). */
2850 rettype
= init_type (TYPE_CODE_FLT
, 4, 0, "float", NULL
);
2853 /* IEEE double precision (64 bit). */
2854 rettype
= init_type (TYPE_CODE_FLT
, 8, 0, "double", NULL
);
2857 /* This is an IEEE double on the RS/6000, and different machines with
2858 different sizes for "long double" should use different negative
2859 type numbers. See stabs.texinfo. */
2860 rettype
= init_type (TYPE_CODE_FLT
, 8, 0, "long double", NULL
);
2863 rettype
= init_type (TYPE_CODE_INT
, 4, 0, "integer", NULL
);
2866 rettype
= init_type (TYPE_CODE_BOOL
, 4, TYPE_FLAG_UNSIGNED
,
2870 rettype
= init_type (TYPE_CODE_FLT
, 4, 0, "short real", NULL
);
2873 rettype
= init_type (TYPE_CODE_FLT
, 8, 0, "real", NULL
);
2876 rettype
= init_type (TYPE_CODE_ERROR
, 0, 0, "stringptr", NULL
);
2879 rettype
= init_type (TYPE_CODE_CHAR
, 1, TYPE_FLAG_UNSIGNED
,
2883 rettype
= init_type (TYPE_CODE_BOOL
, 1, TYPE_FLAG_UNSIGNED
,
2887 rettype
= init_type (TYPE_CODE_BOOL
, 2, TYPE_FLAG_UNSIGNED
,
2891 rettype
= init_type (TYPE_CODE_BOOL
, 4, TYPE_FLAG_UNSIGNED
,
2895 rettype
= init_type (TYPE_CODE_BOOL
, 4, TYPE_FLAG_UNSIGNED
,
2899 /* Complex type consisting of two IEEE single precision values. */
2900 rettype
= init_type (TYPE_CODE_COMPLEX
, 8, 0, "complex", NULL
);
2903 /* Complex type consisting of two IEEE double precision values. */
2904 rettype
= init_type (TYPE_CODE_COMPLEX
, 16, 0, "double complex", NULL
);
2907 rettype
= init_type (TYPE_CODE_INT
, 1, 0, "integer*1", NULL
);
2910 rettype
= init_type (TYPE_CODE_INT
, 2, 0, "integer*2", NULL
);
2913 rettype
= init_type (TYPE_CODE_INT
, 4, 0, "integer*4", NULL
);
2916 rettype
= init_type (TYPE_CODE_CHAR
, 2, 0, "wchar", NULL
);
2919 rettype
= init_type (TYPE_CODE_INT
, 8, 0, "long long", NULL
);
2922 rettype
= init_type (TYPE_CODE_INT
, 8, TYPE_FLAG_UNSIGNED
,
2923 "unsigned long long", NULL
);
2926 rettype
= init_type (TYPE_CODE_INT
, 8, TYPE_FLAG_UNSIGNED
,
2930 rettype
= init_type (TYPE_CODE_INT
, 8, 0, "integer*8", NULL
);
2933 negative_types
[-typenum
] = rettype
;
2937 /* This page contains subroutines of read_type. */
2939 /* Read member function stabs info for C++ classes. The form of each member
2942 NAME :: TYPENUM[=type definition] ARGS : PHYSNAME ;
2944 An example with two member functions is:
2946 afunc1::20=##15;:i;2A.;afunc2::20:i;2A.;
2948 For the case of overloaded operators, the format is op$::*.funcs, where
2949 $ is the CPLUS_MARKER (usually '$'), `*' holds the place for an operator
2950 name (such as `+=') and `.' marks the end of the operator name.
2952 Returns 1 for success, 0 for failure. */
2955 read_member_functions (fip
, pp
, type
, objfile
)
2956 struct field_info
*fip
;
2959 struct objfile
*objfile
;
2963 /* Total number of member functions defined in this class. If the class
2964 defines two `f' functions, and one `g' function, then this will have
2966 int total_length
= 0;
2970 struct next_fnfield
*next
;
2971 struct fn_field fn_field
;
2973 struct type
*look_ahead_type
;
2974 struct next_fnfieldlist
*new_fnlist
;
2975 struct next_fnfield
*new_sublist
;
2979 /* Process each list until we find something that is not a member function
2980 or find the end of the functions. */
2984 /* We should be positioned at the start of the function name.
2985 Scan forward to find the first ':' and if it is not the
2986 first of a "::" delimiter, then this is not a member function. */
2998 look_ahead_type
= NULL
;
3001 new_fnlist
= (struct next_fnfieldlist
*)
3002 xmalloc (sizeof (struct next_fnfieldlist
));
3003 make_cleanup (free
, new_fnlist
);
3004 memset (new_fnlist
, 0, sizeof (struct next_fnfieldlist
));
3006 if ((*pp
)[0] == 'o' && (*pp
)[1] == 'p' && is_cplus_marker ((*pp
)[2]))
3008 /* This is a completely wierd case. In order to stuff in the
3009 names that might contain colons (the usual name delimiter),
3010 Mike Tiemann defined a different name format which is
3011 signalled if the identifier is "op$". In that case, the
3012 format is "op$::XXXX." where XXXX is the name. This is
3013 used for names like "+" or "=". YUUUUUUUK! FIXME! */
3014 /* This lets the user type "break operator+".
3015 We could just put in "+" as the name, but that wouldn't
3017 static char opname
[32] = {'o', 'p', CPLUS_MARKER
};
3018 char *o
= opname
+ 3;
3020 /* Skip past '::'. */
3023 STABS_CONTINUE (pp
, objfile
);
3029 main_fn_name
= savestring (opname
, o
- opname
);
3035 main_fn_name
= savestring (*pp
, p
- *pp
);
3036 /* Skip past '::'. */
3039 new_fnlist
-> fn_fieldlist
.name
= main_fn_name
;
3044 (struct next_fnfield
*) xmalloc (sizeof (struct next_fnfield
));
3045 make_cleanup (free
, new_sublist
);
3046 memset (new_sublist
, 0, sizeof (struct next_fnfield
));
3048 /* Check for and handle cretinous dbx symbol name continuation! */
3049 if (look_ahead_type
== NULL
)
3052 STABS_CONTINUE (pp
, objfile
);
3054 new_sublist
-> fn_field
.type
= read_type (pp
, objfile
);
3057 /* Invalid symtab info for member function. */
3063 /* g++ version 1 kludge */
3064 new_sublist
-> fn_field
.type
= look_ahead_type
;
3065 look_ahead_type
= NULL
;
3075 /* If this is just a stub, then we don't have the real name here. */
3077 if (TYPE_FLAGS (new_sublist
-> fn_field
.type
) & TYPE_FLAG_STUB
)
3079 if (!TYPE_DOMAIN_TYPE (new_sublist
-> fn_field
.type
))
3080 TYPE_DOMAIN_TYPE (new_sublist
-> fn_field
.type
) = type
;
3081 new_sublist
-> fn_field
.is_stub
= 1;
3083 new_sublist
-> fn_field
.physname
= savestring (*pp
, p
- *pp
);
3086 /* Set this member function's visibility fields. */
3089 case VISIBILITY_PRIVATE
:
3090 new_sublist
-> fn_field
.is_private
= 1;
3092 case VISIBILITY_PROTECTED
:
3093 new_sublist
-> fn_field
.is_protected
= 1;
3097 STABS_CONTINUE (pp
, objfile
);
3100 case 'A': /* Normal functions. */
3101 new_sublist
-> fn_field
.is_const
= 0;
3102 new_sublist
-> fn_field
.is_volatile
= 0;
3105 case 'B': /* `const' member functions. */
3106 new_sublist
-> fn_field
.is_const
= 1;
3107 new_sublist
-> fn_field
.is_volatile
= 0;
3110 case 'C': /* `volatile' member function. */
3111 new_sublist
-> fn_field
.is_const
= 0;
3112 new_sublist
-> fn_field
.is_volatile
= 1;
3115 case 'D': /* `const volatile' member function. */
3116 new_sublist
-> fn_field
.is_const
= 1;
3117 new_sublist
-> fn_field
.is_volatile
= 1;
3120 case '*': /* File compiled with g++ version 1 -- no info */
3125 complain (&const_vol_complaint
, **pp
);
3134 /* virtual member function, followed by index.
3135 The sign bit is set to distinguish pointers-to-methods
3136 from virtual function indicies. Since the array is
3137 in words, the quantity must be shifted left by 1
3138 on 16 bit machine, and by 2 on 32 bit machine, forcing
3139 the sign bit out, and usable as a valid index into
3140 the array. Remove the sign bit here. */
3141 new_sublist
-> fn_field
.voffset
=
3142 (0x7fffffff & read_huge_number (pp
, ';', &nbits
)) + 2;
3146 STABS_CONTINUE (pp
, objfile
);
3147 if (**pp
== ';' || **pp
== '\0')
3149 /* Must be g++ version 1. */
3150 new_sublist
-> fn_field
.fcontext
= 0;
3154 /* Figure out from whence this virtual function came.
3155 It may belong to virtual function table of
3156 one of its baseclasses. */
3157 look_ahead_type
= read_type (pp
, objfile
);
3160 /* g++ version 1 overloaded methods. */
3164 new_sublist
-> fn_field
.fcontext
= look_ahead_type
;
3173 look_ahead_type
= NULL
;
3179 /* static member function. */
3180 new_sublist
-> fn_field
.voffset
= VOFFSET_STATIC
;
3181 if (strncmp (new_sublist
-> fn_field
.physname
,
3182 main_fn_name
, strlen (main_fn_name
)))
3184 new_sublist
-> fn_field
.is_stub
= 1;
3190 complain (&member_fn_complaint
, (*pp
)[-1]);
3191 /* Fall through into normal member function. */
3194 /* normal member function. */
3195 new_sublist
-> fn_field
.voffset
= 0;
3196 new_sublist
-> fn_field
.fcontext
= 0;
3200 new_sublist
-> next
= sublist
;
3201 sublist
= new_sublist
;
3203 STABS_CONTINUE (pp
, objfile
);
3205 while (**pp
!= ';' && **pp
!= '\0');
3209 new_fnlist
-> fn_fieldlist
.fn_fields
= (struct fn_field
*)
3210 obstack_alloc (&objfile
-> type_obstack
,
3211 sizeof (struct fn_field
) * length
);
3212 memset (new_fnlist
-> fn_fieldlist
.fn_fields
, 0,
3213 sizeof (struct fn_field
) * length
);
3214 for (i
= length
; (i
--, sublist
); sublist
= sublist
-> next
)
3216 new_fnlist
-> fn_fieldlist
.fn_fields
[i
] = sublist
-> fn_field
;
3219 new_fnlist
-> fn_fieldlist
.length
= length
;
3220 new_fnlist
-> next
= fip
-> fnlist
;
3221 fip
-> fnlist
= new_fnlist
;
3223 total_length
+= length
;
3224 STABS_CONTINUE (pp
, objfile
);
3229 ALLOCATE_CPLUS_STRUCT_TYPE (type
);
3230 TYPE_FN_FIELDLISTS (type
) = (struct fn_fieldlist
*)
3231 TYPE_ALLOC (type
, sizeof (struct fn_fieldlist
) * nfn_fields
);
3232 memset (TYPE_FN_FIELDLISTS (type
), 0,
3233 sizeof (struct fn_fieldlist
) * nfn_fields
);
3234 TYPE_NFN_FIELDS (type
) = nfn_fields
;
3235 TYPE_NFN_FIELDS_TOTAL (type
) = total_length
;
3241 /* Special GNU C++ name.
3243 Returns 1 for success, 0 for failure. "failure" means that we can't
3244 keep parsing and it's time for error_type(). */
3247 read_cpp_abbrev (fip
, pp
, type
, objfile
)
3248 struct field_info
*fip
;
3251 struct objfile
*objfile
;
3256 struct type
*context
;
3266 /* At this point, *pp points to something like "22:23=*22...",
3267 where the type number before the ':' is the "context" and
3268 everything after is a regular type definition. Lookup the
3269 type, find it's name, and construct the field name. */
3271 context
= read_type (pp
, objfile
);
3275 case 'f': /* $vf -- a virtual function table pointer */
3276 fip
->list
->field
.name
=
3277 obconcat (&objfile
->type_obstack
, vptr_name
, "", "");
3280 case 'b': /* $vb -- a virtual bsomethingorother */
3281 name
= type_name_no_tag (context
);
3284 complain (&invalid_cpp_type_complaint
, symnum
);
3287 fip
->list
->field
.name
=
3288 obconcat (&objfile
->type_obstack
, vb_name
, name
, "");
3292 complain (&invalid_cpp_abbrev_complaint
, *pp
);
3293 fip
->list
->field
.name
=
3294 obconcat (&objfile
->type_obstack
,
3295 "INVALID_CPLUSPLUS_ABBREV", "", "");
3299 /* At this point, *pp points to the ':'. Skip it and read the
3305 complain (&invalid_cpp_abbrev_complaint
, *pp
);
3308 fip
->list
->field
.type
= read_type (pp
, objfile
);
3310 (*pp
)++; /* Skip the comma. */
3316 FIELD_BITPOS (fip
->list
->field
) = read_huge_number (pp
, ';', &nbits
);
3320 /* This field is unpacked. */
3321 FIELD_BITSIZE (fip
->list
->field
) = 0;
3322 fip
->list
->visibility
= VISIBILITY_PRIVATE
;
3326 complain (&invalid_cpp_abbrev_complaint
, *pp
);
3327 /* We have no idea what syntax an unrecognized abbrev would have, so
3328 better return 0. If we returned 1, we would need to at least advance
3329 *pp to avoid an infinite loop. */
3336 read_one_struct_field (fip
, pp
, p
, type
, objfile
)
3337 struct field_info
*fip
;
3341 struct objfile
*objfile
;
3343 /* The following is code to work around cfront generated stabs.
3344 The stabs contains full mangled name for each field.
3345 We try to demangle the name and extract the field name out of it.
3347 if (ARM_DEMANGLING
&& current_subfile
->language
== language_cplus
)
3353 dem
= cplus_demangle (*pp
, DMGL_ANSI
| DMGL_PARAMS
);
3356 dem_p
= strrchr (dem
, ':');
3357 if (dem_p
!= 0 && *(dem_p
-1)==':')
3359 FIELD_NAME (fip
->list
->field
) =
3360 obsavestring (dem_p
, strlen (dem_p
), &objfile
-> type_obstack
);
3364 FIELD_NAME (fip
->list
->field
) =
3365 obsavestring (*pp
, p
- *pp
, &objfile
-> type_obstack
);
3369 /* end of code for cfront work around */
3372 fip
-> list
-> field
.name
=
3373 obsavestring (*pp
, p
- *pp
, &objfile
-> type_obstack
);
3376 /* This means we have a visibility for a field coming. */
3380 fip
-> list
-> visibility
= *(*pp
)++;
3384 /* normal dbx-style format, no explicit visibility */
3385 fip
-> list
-> visibility
= VISIBILITY_PUBLIC
;
3388 fip
-> list
-> field
.type
= read_type (pp
, objfile
);
3393 /* Possible future hook for nested types. */
3396 fip
-> list
-> field
.bitpos
= (long)-2; /* nested type */
3405 /* Static class member. */
3406 SET_FIELD_PHYSNAME (fip
->list
->field
, savestring (*pp
, p
- *pp
));
3410 else if (**pp
!= ',')
3412 /* Bad structure-type format. */
3413 complain (&stabs_general_complaint
, "bad structure-type format");
3417 (*pp
)++; /* Skip the comma. */
3421 FIELD_BITPOS (fip
->list
->field
) = read_huge_number (pp
, ',', &nbits
);
3424 complain (&stabs_general_complaint
, "bad structure-type format");
3427 FIELD_BITSIZE (fip
->list
->field
) = read_huge_number (pp
, ';', &nbits
);
3430 complain (&stabs_general_complaint
, "bad structure-type format");
3435 if (FIELD_BITPOS (fip
->list
->field
) == 0
3436 && FIELD_BITSIZE (fip
->list
->field
) == 0)
3438 /* This can happen in two cases: (1) at least for gcc 2.4.5 or so,
3439 it is a field which has been optimized out. The correct stab for
3440 this case is to use VISIBILITY_IGNORE, but that is a recent
3441 invention. (2) It is a 0-size array. For example
3442 union { int num; char str[0]; } foo. Printing "<no value>" for
3443 str in "p foo" is OK, since foo.str (and thus foo.str[3])
3444 will continue to work, and a 0-size array as a whole doesn't
3445 have any contents to print.
3447 I suspect this probably could also happen with gcc -gstabs (not
3448 -gstabs+) for static fields, and perhaps other C++ extensions.
3449 Hopefully few people use -gstabs with gdb, since it is intended
3450 for dbx compatibility. */
3452 /* Ignore this field. */
3453 fip
-> list
-> visibility
= VISIBILITY_IGNORE
;
3457 /* Detect an unpacked field and mark it as such.
3458 dbx gives a bit size for all fields.
3459 Note that forward refs cannot be packed,
3460 and treat enums as if they had the width of ints. */
3462 struct type
*field_type
= check_typedef (FIELD_TYPE (fip
->list
->field
));
3464 if (TYPE_CODE (field_type
) != TYPE_CODE_INT
3465 && TYPE_CODE (field_type
) != TYPE_CODE_RANGE
3466 && TYPE_CODE (field_type
) != TYPE_CODE_BOOL
3467 && TYPE_CODE (field_type
) != TYPE_CODE_ENUM
)
3469 FIELD_BITSIZE (fip
->list
->field
) = 0;
3471 if ((FIELD_BITSIZE (fip
->list
->field
)
3472 == TARGET_CHAR_BIT
* TYPE_LENGTH (field_type
)
3473 || (TYPE_CODE (field_type
) == TYPE_CODE_ENUM
3474 && FIELD_BITSIZE (fip
->list
->field
) == TARGET_INT_BIT
)
3477 FIELD_BITPOS (fip
->list
->field
) % 8 == 0)
3479 FIELD_BITSIZE (fip
->list
->field
) = 0;
3485 /* Read struct or class data fields. They have the form:
3487 NAME : [VISIBILITY] TYPENUM , BITPOS , BITSIZE ;
3489 At the end, we see a semicolon instead of a field.
3491 In C++, this may wind up being NAME:?TYPENUM:PHYSNAME; for
3494 The optional VISIBILITY is one of:
3496 '/0' (VISIBILITY_PRIVATE)
3497 '/1' (VISIBILITY_PROTECTED)
3498 '/2' (VISIBILITY_PUBLIC)
3499 '/9' (VISIBILITY_IGNORE)
3501 or nothing, for C style fields with public visibility.
3503 Returns 1 for success, 0 for failure. */
3506 read_struct_fields (fip
, pp
, type
, objfile
)
3507 struct field_info
*fip
;
3510 struct objfile
*objfile
;
3513 struct nextfield
*new;
3515 /* We better set p right now, in case there are no fields at all... */
3519 /* Read each data member type until we find the terminating ';' at the end of
3520 the data member list, or break for some other reason such as finding the
3521 start of the member function list. */
3525 if (os9k_stabs
&& **pp
== ',') break;
3526 STABS_CONTINUE (pp
, objfile
);
3527 /* Get space to record the next field's data. */
3528 new = (struct nextfield
*) xmalloc (sizeof (struct nextfield
));
3529 make_cleanup (free
, new);
3530 memset (new, 0, sizeof (struct nextfield
));
3531 new -> next
= fip
-> list
;
3534 /* Get the field name. */
3537 /* If is starts with CPLUS_MARKER it is a special abbreviation,
3538 unless the CPLUS_MARKER is followed by an underscore, in
3539 which case it is just the name of an anonymous type, which we
3540 should handle like any other type name. */
3542 if (is_cplus_marker (p
[0]) && p
[1] != '_')
3544 if (!read_cpp_abbrev (fip
, pp
, type
, objfile
))
3549 /* Look for the ':' that separates the field name from the field
3550 values. Data members are delimited by a single ':', while member
3551 functions are delimited by a pair of ':'s. When we hit the member
3552 functions (if any), terminate scan loop and return. */
3554 while (*p
!= ':' && *p
!= '\0')
3561 /* Check to see if we have hit the member functions yet. */
3566 read_one_struct_field (fip
, pp
, p
, type
, objfile
);
3568 if (p
[0] == ':' && p
[1] == ':')
3570 /* chill the list of fields: the last entry (at the head) is a
3571 partially constructed entry which we now scrub. */
3572 fip
-> list
= fip
-> list
-> next
;
3577 /* The stabs for C++ derived classes contain baseclass information which
3578 is marked by a '!' character after the total size. This function is
3579 called when we encounter the baseclass marker, and slurps up all the
3580 baseclass information.
3582 Immediately following the '!' marker is the number of base classes that
3583 the class is derived from, followed by information for each base class.
3584 For each base class, there are two visibility specifiers, a bit offset
3585 to the base class information within the derived class, a reference to
3586 the type for the base class, and a terminating semicolon.
3588 A typical example, with two base classes, would be "!2,020,19;0264,21;".
3590 Baseclass information marker __________________|| | | | | | |
3591 Number of baseclasses __________________________| | | | | | |
3592 Visibility specifiers (2) ________________________| | | | | |
3593 Offset in bits from start of class _________________| | | | |
3594 Type number for base class ___________________________| | | |
3595 Visibility specifiers (2) _______________________________| | |
3596 Offset in bits from start of class ________________________| |
3597 Type number of base class ____________________________________|
3599 Return 1 for success, 0 for (error-type-inducing) failure. */
3602 read_baseclasses (fip
, pp
, type
, objfile
)
3603 struct field_info
*fip
;
3606 struct objfile
*objfile
;
3609 struct nextfield
*new;
3617 /* Skip the '!' baseclass information marker. */
3621 ALLOCATE_CPLUS_STRUCT_TYPE (type
);
3624 TYPE_N_BASECLASSES (type
) = read_huge_number (pp
, ',', &nbits
);
3630 /* Some stupid compilers have trouble with the following, so break
3631 it up into simpler expressions. */
3632 TYPE_FIELD_VIRTUAL_BITS (type
) = (B_TYPE
*)
3633 TYPE_ALLOC (type
, B_BYTES (TYPE_N_BASECLASSES (type
)));
3636 int num_bytes
= B_BYTES (TYPE_N_BASECLASSES (type
));
3639 pointer
= (char *) TYPE_ALLOC (type
, num_bytes
);
3640 TYPE_FIELD_VIRTUAL_BITS (type
) = (B_TYPE
*) pointer
;
3644 B_CLRALL (TYPE_FIELD_VIRTUAL_BITS (type
), TYPE_N_BASECLASSES (type
));
3646 for (i
= 0; i
< TYPE_N_BASECLASSES (type
); i
++)
3648 new = (struct nextfield
*) xmalloc (sizeof (struct nextfield
));
3649 make_cleanup (free
, new);
3650 memset (new, 0, sizeof (struct nextfield
));
3651 new -> next
= fip
-> list
;
3653 FIELD_BITSIZE (new->field
) = 0; /* this should be an unpacked field! */
3655 STABS_CONTINUE (pp
, objfile
);
3659 /* Nothing to do. */
3662 SET_TYPE_FIELD_VIRTUAL (type
, i
);
3665 /* Unknown character. Complain and treat it as non-virtual. */
3667 static struct complaint msg
= {
3668 "Unknown virtual character `%c' for baseclass", 0, 0};
3669 complain (&msg
, **pp
);
3674 new -> visibility
= *(*pp
)++;
3675 switch (new -> visibility
)
3677 case VISIBILITY_PRIVATE
:
3678 case VISIBILITY_PROTECTED
:
3679 case VISIBILITY_PUBLIC
:
3682 /* Bad visibility format. Complain and treat it as
3685 static struct complaint msg
= {
3686 "Unknown visibility `%c' for baseclass", 0, 0};
3687 complain (&msg
, new -> visibility
);
3688 new -> visibility
= VISIBILITY_PUBLIC
;
3695 /* The remaining value is the bit offset of the portion of the object
3696 corresponding to this baseclass. Always zero in the absence of
3697 multiple inheritance. */
3699 FIELD_BITPOS (new->field
) = read_huge_number (pp
, ',', &nbits
);
3704 /* The last piece of baseclass information is the type of the
3705 base class. Read it, and remember it's type name as this
3708 new -> field
.type
= read_type (pp
, objfile
);
3709 new -> field
.name
= type_name_no_tag (new -> field
.type
);
3711 /* skip trailing ';' and bump count of number of fields seen */
3720 /* The tail end of stabs for C++ classes that contain a virtual function
3721 pointer contains a tilde, a %, and a type number.
3722 The type number refers to the base class (possibly this class itself) which
3723 contains the vtable pointer for the current class.
3725 This function is called when we have parsed all the method declarations,
3726 so we can look for the vptr base class info. */
3729 read_tilde_fields (fip
, pp
, type
, objfile
)
3730 struct field_info
*fip
;
3733 struct objfile
*objfile
;
3737 STABS_CONTINUE (pp
, objfile
);
3739 /* If we are positioned at a ';', then skip it. */
3749 if (**pp
== '=' || **pp
== '+' || **pp
== '-')
3751 /* Obsolete flags that used to indicate the presence
3752 of constructors and/or destructors. */
3756 /* Read either a '%' or the final ';'. */
3757 if (*(*pp
)++ == '%')
3759 /* The next number is the type number of the base class
3760 (possibly our own class) which supplies the vtable for
3761 this class. Parse it out, and search that class to find
3762 its vtable pointer, and install those into TYPE_VPTR_BASETYPE
3763 and TYPE_VPTR_FIELDNO. */
3768 t
= read_type (pp
, objfile
);
3770 while (*p
!= '\0' && *p
!= ';')
3776 /* Premature end of symbol. */
3780 TYPE_VPTR_BASETYPE (type
) = t
;
3781 if (type
== t
) /* Our own class provides vtbl ptr */
3783 for (i
= TYPE_NFIELDS (t
) - 1;
3784 i
>= TYPE_N_BASECLASSES (t
);
3787 if (! strncmp (TYPE_FIELD_NAME (t
, i
), vptr_name
,
3788 sizeof (vptr_name
) - 1))
3790 TYPE_VPTR_FIELDNO (type
) = i
;
3794 /* Virtual function table field not found. */
3795 complain (&vtbl_notfound_complaint
, TYPE_NAME (type
));
3800 TYPE_VPTR_FIELDNO (type
) = TYPE_VPTR_FIELDNO (t
);
3811 attach_fn_fields_to_type (fip
, type
)
3812 struct field_info
*fip
;
3813 register struct type
*type
;
3817 for (n
= TYPE_NFN_FIELDS (type
);
3818 fip
-> fnlist
!= NULL
;
3819 fip
-> fnlist
= fip
-> fnlist
-> next
)
3821 --n
; /* Circumvent Sun3 compiler bug */
3822 TYPE_FN_FIELDLISTS (type
)[n
] = fip
-> fnlist
-> fn_fieldlist
;
3827 /* read cfront class static data.
3828 pp points to string starting with the list of static data
3829 eg: A:ZcA;1@Bpub v2@Bvirpri;__ct__1AFv func__1AFv *sfunc__1AFv ;as__1A ;;
3832 A:ZcA;;foopri__1AFv foopro__1AFv __ct__1AFv __ct__1AFRC1A foopub__1AFv ;;;
3837 read_cfront_static_fields (fip
, pp
, type
, objfile
)
3838 struct field_info
*fip
;
3841 struct objfile
*objfile
;
3843 struct nextfield
* new;
3846 struct symbol
* ref_static
=0;
3848 if (**pp
==';') /* no static data; return */
3854 /* Process each field in the list until we find the terminating ";" */
3856 /* eg: p = "as__1A ;;;" */
3857 STABS_CONTINUE (pp
, objfile
); /* handle \\ */
3858 while (**pp
!=';' && (sname
= get_substring (pp
, ' '), sname
))
3860 ref_static
= lookup_symbol (sname
, 0, VAR_NAMESPACE
, 0, 0); /*demangled_name*/
3863 static struct complaint msg
= {"\
3864 Unable to find symbol for static data field %s\n",
3866 complain (&msg
, sname
);
3869 stype
= SYMBOL_TYPE(ref_static
);
3871 /* allocate a new fip */
3872 new = (struct nextfield
*) xmalloc (sizeof (struct nextfield
));
3873 make_cleanup (free
, new);
3874 memset (new, 0, sizeof (struct nextfield
));
3875 new -> next
= fip
-> list
;
3878 /* set visibility */
3879 /* FIXME! no way to tell visibility from stabs??? */
3880 new -> visibility
= VISIBILITY_PUBLIC
;
3882 /* set field info into fip */
3883 fip
-> list
-> field
.type
= stype
;
3885 /* set bitpos & bitsize */
3886 SET_FIELD_PHYSNAME (fip
->list
->field
, savestring (sname
, strlen (sname
)));
3888 /* set name field */
3889 /* The following is code to work around cfront generated stabs.
3890 The stabs contains full mangled name for each field.
3891 We try to demangle the name and extract the field name out of it.
3896 dem
= cplus_demangle (sname
, DMGL_ANSI
| DMGL_PARAMS
);
3899 dem_p
= strrchr (dem
, ':');
3900 if (dem_p
!= 0 && *(dem_p
-1)==':')
3902 fip
->list
->field
.name
=
3903 obsavestring (dem_p
, strlen (dem_p
), &objfile
-> type_obstack
);
3907 fip
->list
->field
.name
=
3908 obsavestring (sname
, strlen (sname
), &objfile
-> type_obstack
);
3910 } /* end of code for cfront work around */
3911 } /* loop again for next static field */
3915 /* Copy structure fields to fip so attach_fields_to_type will work.
3916 type has already been created with the initial instance data fields.
3917 Now we want to be able to add the other members to the class,
3918 so we want to add them back to the fip and reattach them again
3919 once we have collected all the class members. */
3922 copy_cfront_struct_fields (fip
, type
, objfile
)
3923 struct field_info
*fip
;
3925 struct objfile
*objfile
;
3927 int nfields
= TYPE_NFIELDS(type
);
3929 struct nextfield
* new;
3931 /* Copy the fields into the list of fips and reset the types
3932 to remove the old fields */
3934 for (i
=0; i
<nfields
; i
++)
3936 /* allocate a new fip */
3937 new = (struct nextfield
*) xmalloc (sizeof (struct nextfield
));
3938 make_cleanup (free
, new);
3939 memset (new, 0, sizeof (struct nextfield
));
3940 new -> next
= fip
-> list
;
3943 /* copy field info into fip */
3944 new -> field
= TYPE_FIELD (type
, i
);
3945 /* set visibility */
3946 if (TYPE_FIELD_PROTECTED (type
, i
))
3947 new -> visibility
= VISIBILITY_PROTECTED
;
3948 else if (TYPE_FIELD_PRIVATE (type
, i
))
3949 new -> visibility
= VISIBILITY_PRIVATE
;
3951 new -> visibility
= VISIBILITY_PUBLIC
;
3953 /* Now delete the fields from the type since we will be
3954 allocing new space once we get the rest of the fields
3955 in attach_fields_to_type.
3956 The pointer TYPE_FIELDS(type) is left dangling but should
3957 be freed later by objstack_free */
3958 TYPE_FIELDS (type
)=0;
3959 TYPE_NFIELDS (type
) = 0;
3964 /* Create the vector of fields, and record how big it is.
3965 We need this info to record proper virtual function table information
3966 for this class's virtual functions. */
3969 attach_fields_to_type (fip
, type
, objfile
)
3970 struct field_info
*fip
;
3971 register struct type
*type
;
3972 struct objfile
*objfile
;
3974 register int nfields
= 0;
3975 register int non_public_fields
= 0;
3976 register struct nextfield
*scan
;
3978 /* Count up the number of fields that we have, as well as taking note of
3979 whether or not there are any non-public fields, which requires us to
3980 allocate and build the private_field_bits and protected_field_bits
3983 for (scan
= fip
-> list
; scan
!= NULL
; scan
= scan
-> next
)
3986 if (scan
-> visibility
!= VISIBILITY_PUBLIC
)
3988 non_public_fields
++;
3992 /* Now we know how many fields there are, and whether or not there are any
3993 non-public fields. Record the field count, allocate space for the
3994 array of fields, and create blank visibility bitfields if necessary. */
3996 TYPE_NFIELDS (type
) = nfields
;
3997 TYPE_FIELDS (type
) = (struct field
*)
3998 TYPE_ALLOC (type
, sizeof (struct field
) * nfields
);
3999 memset (TYPE_FIELDS (type
), 0, sizeof (struct field
) * nfields
);
4001 if (non_public_fields
)
4003 ALLOCATE_CPLUS_STRUCT_TYPE (type
);
4005 TYPE_FIELD_PRIVATE_BITS (type
) =
4006 (B_TYPE
*) TYPE_ALLOC (type
, B_BYTES (nfields
));
4007 B_CLRALL (TYPE_FIELD_PRIVATE_BITS (type
), nfields
);
4009 TYPE_FIELD_PROTECTED_BITS (type
) =
4010 (B_TYPE
*) TYPE_ALLOC (type
, B_BYTES (nfields
));
4011 B_CLRALL (TYPE_FIELD_PROTECTED_BITS (type
), nfields
);
4013 TYPE_FIELD_IGNORE_BITS (type
) =
4014 (B_TYPE
*) TYPE_ALLOC (type
, B_BYTES (nfields
));
4015 B_CLRALL (TYPE_FIELD_IGNORE_BITS (type
), nfields
);
4018 /* Copy the saved-up fields into the field vector. Start from the head
4019 of the list, adding to the tail of the field array, so that they end
4020 up in the same order in the array in which they were added to the list. */
4022 while (nfields
-- > 0)
4024 TYPE_FIELD (type
, nfields
) = fip
-> list
-> field
;
4025 switch (fip
-> list
-> visibility
)
4027 case VISIBILITY_PRIVATE
:
4028 SET_TYPE_FIELD_PRIVATE (type
, nfields
);
4031 case VISIBILITY_PROTECTED
:
4032 SET_TYPE_FIELD_PROTECTED (type
, nfields
);
4035 case VISIBILITY_IGNORE
:
4036 SET_TYPE_FIELD_IGNORE (type
, nfields
);
4039 case VISIBILITY_PUBLIC
:
4043 /* Unknown visibility. Complain and treat it as public. */
4045 static struct complaint msg
= {
4046 "Unknown visibility `%c' for field", 0, 0};
4047 complain (&msg
, fip
-> list
-> visibility
);
4051 fip
-> list
= fip
-> list
-> next
;
4056 /* Read the description of a structure (or union type) and return an object
4057 describing the type.
4059 PP points to a character pointer that points to the next unconsumed token
4060 in the the stabs string. For example, given stabs "A:T4=s4a:1,0,32;;",
4061 *PP will point to "4a:1,0,32;;".
4063 TYPE points to an incomplete type that needs to be filled in.
4065 OBJFILE points to the current objfile from which the stabs information is
4066 being read. (Note that it is redundant in that TYPE also contains a pointer
4067 to this same objfile, so it might be a good idea to eliminate it. FIXME).
4070 static struct type
*
4071 read_struct_type (pp
, type
, objfile
)
4074 struct objfile
*objfile
;
4076 struct cleanup
*back_to
;
4077 struct field_info fi
;
4082 back_to
= make_cleanup (null_cleanup
, 0);
4084 INIT_CPLUS_SPECIFIC (type
);
4085 TYPE_FLAGS (type
) &= ~TYPE_FLAG_STUB
;
4087 /* First comes the total size in bytes. */
4091 TYPE_LENGTH (type
) = read_huge_number (pp
, 0, &nbits
);
4093 return error_type (pp
, objfile
);
4096 /* Now read the baseclasses, if any, read the regular C struct or C++
4097 class member fields, attach the fields to the type, read the C++
4098 member functions, attach them to the type, and then read any tilde
4099 field (baseclass specifier for the class holding the main vtable). */
4101 if (!read_baseclasses (&fi
, pp
, type
, objfile
)
4102 || !read_struct_fields (&fi
, pp
, type
, objfile
)
4103 || !attach_fields_to_type (&fi
, type
, objfile
)
4104 || !read_member_functions (&fi
, pp
, type
, objfile
)
4105 || !attach_fn_fields_to_type (&fi
, type
)
4106 || !read_tilde_fields (&fi
, pp
, type
, objfile
))
4108 type
= error_type (pp
, objfile
);
4111 do_cleanups (back_to
);
4115 /* Read a definition of an array type,
4116 and create and return a suitable type object.
4117 Also creates a range type which represents the bounds of that
4120 static struct type
*
4121 read_array_type (pp
, type
, objfile
)
4123 register struct type
*type
;
4124 struct objfile
*objfile
;
4126 struct type
*index_type
, *element_type
, *range_type
;
4131 /* Format of an array type:
4132 "ar<index type>;lower;upper;<array_contents_type>".
4133 OS9000: "arlower,upper;<array_contents_type>".
4135 Fortran adjustable arrays use Adigits or Tdigits for lower or upper;
4136 for these, produce a type like float[][]. */
4139 index_type
= builtin_type_int
;
4142 index_type
= read_type (pp
, objfile
);
4144 /* Improper format of array type decl. */
4145 return error_type (pp
, objfile
);
4149 if (!(**pp
>= '0' && **pp
<= '9') && **pp
!= '-')
4154 lower
= read_huge_number (pp
, os9k_stabs
? ',' : ';', &nbits
);
4156 return error_type (pp
, objfile
);
4158 if (!(**pp
>= '0' && **pp
<= '9') && **pp
!= '-')
4163 upper
= read_huge_number (pp
, ';', &nbits
);
4165 return error_type (pp
, objfile
);
4167 element_type
= read_type (pp
, objfile
);
4176 create_range_type ((struct type
*) NULL
, index_type
, lower
, upper
);
4177 type
= create_array_type (type
, element_type
, range_type
);
4183 /* Read a definition of an enumeration type,
4184 and create and return a suitable type object.
4185 Also defines the symbols that represent the values of the type. */
4187 static struct type
*
4188 read_enum_type (pp
, type
, objfile
)
4190 register struct type
*type
;
4191 struct objfile
*objfile
;
4196 register struct symbol
*sym
;
4198 struct pending
**symlist
;
4199 struct pending
*osyms
, *syms
;
4202 int unsigned_enum
= 1;
4205 /* FIXME! The stabs produced by Sun CC merrily define things that ought
4206 to be file-scope, between N_FN entries, using N_LSYM. What's a mother
4207 to do? For now, force all enum values to file scope. */
4208 if (within_function
)
4209 symlist
= &local_symbols
;
4212 symlist
= &file_symbols
;
4214 o_nsyms
= osyms
? osyms
->nsyms
: 0;
4218 /* Size. Perhaps this does not have to be conditionalized on
4219 os9k_stabs (assuming the name of an enum constant can't start
4221 read_huge_number (pp
, 0, &nbits
);
4223 return error_type (pp
, objfile
);
4226 /* The aix4 compiler emits an extra field before the enum members;
4227 my guess is it's a type of some sort. Just ignore it. */
4230 /* Skip over the type. */
4234 /* Skip over the colon. */
4238 /* Read the value-names and their values.
4239 The input syntax is NAME:VALUE,NAME:VALUE, and so on.
4240 A semicolon or comma instead of a NAME means the end. */
4241 while (**pp
&& **pp
!= ';' && **pp
!= ',')
4243 STABS_CONTINUE (pp
, objfile
);
4245 while (*p
!= ':') p
++;
4246 name
= obsavestring (*pp
, p
- *pp
, &objfile
-> symbol_obstack
);
4248 n
= read_huge_number (pp
, ',', &nbits
);
4250 return error_type (pp
, objfile
);
4252 sym
= (struct symbol
*)
4253 obstack_alloc (&objfile
-> symbol_obstack
, sizeof (struct symbol
));
4254 memset (sym
, 0, sizeof (struct symbol
));
4255 SYMBOL_NAME (sym
) = name
;
4256 SYMBOL_LANGUAGE (sym
) = current_subfile
-> language
;
4257 SYMBOL_CLASS (sym
) = LOC_CONST
;
4258 SYMBOL_NAMESPACE (sym
) = VAR_NAMESPACE
;
4259 SYMBOL_VALUE (sym
) = n
;
4262 add_symbol_to_list (sym
, symlist
);
4267 (*pp
)++; /* Skip the semicolon. */
4269 /* Now fill in the fields of the type-structure. */
4271 TYPE_LENGTH (type
) = TARGET_INT_BIT
/ HOST_CHAR_BIT
;
4272 TYPE_CODE (type
) = TYPE_CODE_ENUM
;
4273 TYPE_FLAGS (type
) &= ~TYPE_FLAG_STUB
;
4275 TYPE_FLAGS (type
) |= TYPE_FLAG_UNSIGNED
;
4276 TYPE_NFIELDS (type
) = nsyms
;
4277 TYPE_FIELDS (type
) = (struct field
*)
4278 TYPE_ALLOC (type
, sizeof (struct field
) * nsyms
);
4279 memset (TYPE_FIELDS (type
), 0, sizeof (struct field
) * nsyms
);
4281 /* Find the symbols for the values and put them into the type.
4282 The symbols can be found in the symlist that we put them on
4283 to cause them to be defined. osyms contains the old value
4284 of that symlist; everything up to there was defined by us. */
4285 /* Note that we preserve the order of the enum constants, so
4286 that in something like "enum {FOO, LAST_THING=FOO}" we print
4287 FOO, not LAST_THING. */
4289 for (syms
= *symlist
, n
= nsyms
- 1; syms
; syms
= syms
->next
)
4291 int last
= syms
== osyms
? o_nsyms
: 0;
4292 int j
= syms
->nsyms
;
4293 for (; --j
>= last
; --n
)
4295 struct symbol
*xsym
= syms
->symbol
[j
];
4296 SYMBOL_TYPE (xsym
) = type
;
4297 TYPE_FIELD_NAME (type
, n
) = SYMBOL_NAME (xsym
);
4298 TYPE_FIELD_BITPOS (type
, n
) = SYMBOL_VALUE (xsym
);
4299 TYPE_FIELD_BITSIZE (type
, n
) = 0;
4308 /* Sun's ACC uses a somewhat saner method for specifying the builtin
4309 typedefs in every file (for int, long, etc):
4311 type = b <signed> <width> <format type>; <offset>; <nbits>
4313 optional format type = c or b for char or boolean.
4314 offset = offset from high order bit to start bit of type.
4315 width is # bytes in object of this type, nbits is # bits in type.
4317 The width/offset stuff appears to be for small objects stored in
4318 larger ones (e.g. `shorts' in `int' registers). We ignore it for now,
4321 static struct type
*
4322 read_sun_builtin_type (pp
, typenums
, objfile
)
4325 struct objfile
*objfile
;
4330 enum type_code code
= TYPE_CODE_INT
;
4341 return error_type (pp
, objfile
);
4345 /* For some odd reason, all forms of char put a c here. This is strange
4346 because no other type has this honor. We can safely ignore this because
4347 we actually determine 'char'acterness by the number of bits specified in
4349 Boolean forms, e.g Fortran logical*X, put a b here. */
4353 else if (**pp
== 'b')
4355 code
= TYPE_CODE_BOOL
;
4359 /* The first number appears to be the number of bytes occupied
4360 by this type, except that unsigned short is 4 instead of 2.
4361 Since this information is redundant with the third number,
4362 we will ignore it. */
4363 read_huge_number (pp
, ';', &nbits
);
4365 return error_type (pp
, objfile
);
4367 /* The second number is always 0, so ignore it too. */
4368 read_huge_number (pp
, ';', &nbits
);
4370 return error_type (pp
, objfile
);
4372 /* The third number is the number of bits for this type. */
4373 type_bits
= read_huge_number (pp
, 0, &nbits
);
4375 return error_type (pp
, objfile
);
4376 /* The type *should* end with a semicolon. If it are embedded
4377 in a larger type the semicolon may be the only way to know where
4378 the type ends. If this type is at the end of the stabstring we
4379 can deal with the omitted semicolon (but we don't have to like
4380 it). Don't bother to complain(), Sun's compiler omits the semicolon
4386 return init_type (TYPE_CODE_VOID
, 1,
4387 signed_type
? 0 : TYPE_FLAG_UNSIGNED
, (char *)NULL
,
4390 return init_type (code
,
4391 type_bits
/ TARGET_CHAR_BIT
,
4392 signed_type
? 0 : TYPE_FLAG_UNSIGNED
, (char *)NULL
,
4396 static struct type
*
4397 read_sun_floating_type (pp
, typenums
, objfile
)
4400 struct objfile
*objfile
;
4406 /* The first number has more details about the type, for example
4408 details
= read_huge_number (pp
, ';', &nbits
);
4410 return error_type (pp
, objfile
);
4412 /* The second number is the number of bytes occupied by this type */
4413 nbytes
= read_huge_number (pp
, ';', &nbits
);
4415 return error_type (pp
, objfile
);
4417 if (details
== NF_COMPLEX
|| details
== NF_COMPLEX16
4418 || details
== NF_COMPLEX32
)
4419 /* This is a type we can't handle, but we do know the size.
4420 We also will be able to give it a name. */
4421 return init_type (TYPE_CODE_COMPLEX
, nbytes
, 0, NULL
, objfile
);
4423 return init_type (TYPE_CODE_FLT
, nbytes
, 0, NULL
, objfile
);
4426 /* Read a number from the string pointed to by *PP.
4427 The value of *PP is advanced over the number.
4428 If END is nonzero, the character that ends the
4429 number must match END, or an error happens;
4430 and that character is skipped if it does match.
4431 If END is zero, *PP is left pointing to that character.
4433 If the number fits in a long, set *BITS to 0 and return the value.
4434 If not, set *BITS to be the number of bits in the number and return 0.
4436 If encounter garbage, set *BITS to -1 and return 0. */
4439 read_huge_number (pp
, end
, bits
)
4459 /* Leading zero means octal. GCC uses this to output values larger
4460 than an int (because that would be hard in decimal). */
4468 upper_limit
= ULONG_MAX
/ radix
;
4470 upper_limit
= LONG_MAX
/ radix
;
4472 while ((c
= *p
++) >= '0' && c
< ('0' + radix
))
4474 if (n
<= upper_limit
)
4477 n
+= c
- '0'; /* FIXME this overflows anyway */
4482 /* This depends on large values being output in octal, which is
4489 /* Ignore leading zeroes. */
4493 else if (c
== '2' || c
== '3')
4519 /* Large decimal constants are an error (because it is hard to
4520 count how many bits are in them). */
4526 /* -0x7f is the same as 0x80. So deal with it by adding one to
4527 the number of bits. */
4539 /* It's *BITS which has the interesting information. */
4543 static struct type
*
4544 read_range_type (pp
, typenums
, objfile
)
4547 struct objfile
*objfile
;
4549 char *orig_pp
= *pp
;
4554 struct type
*result_type
;
4555 struct type
*index_type
= NULL
;
4557 /* First comes a type we are a subrange of.
4558 In C it is usually 0, 1 or the type being defined. */
4559 if (read_type_number (pp
, rangenums
) != 0)
4560 return error_type (pp
, objfile
);
4561 self_subrange
= (rangenums
[0] == typenums
[0] &&
4562 rangenums
[1] == typenums
[1]);
4567 index_type
= read_type (pp
, objfile
);
4570 /* A semicolon should now follow; skip it. */
4574 /* The remaining two operands are usually lower and upper bounds
4575 of the range. But in some special cases they mean something else. */
4576 n2
= read_huge_number (pp
, ';', &n2bits
);
4577 n3
= read_huge_number (pp
, ';', &n3bits
);
4579 if (n2bits
== -1 || n3bits
== -1)
4580 return error_type (pp
, objfile
);
4583 goto handle_true_range
;
4585 /* If limits are huge, must be large integral type. */
4586 if (n2bits
!= 0 || n3bits
!= 0)
4588 char got_signed
= 0;
4589 char got_unsigned
= 0;
4590 /* Number of bits in the type. */
4593 /* Range from 0 to <large number> is an unsigned large integral type. */
4594 if ((n2bits
== 0 && n2
== 0) && n3bits
!= 0)
4599 /* Range from <large number> to <large number>-1 is a large signed
4600 integral type. Take care of the case where <large number> doesn't
4601 fit in a long but <large number>-1 does. */
4602 else if ((n2bits
!= 0 && n3bits
!= 0 && n2bits
== n3bits
+ 1)
4603 || (n2bits
!= 0 && n3bits
== 0
4604 && (n2bits
== sizeof (long) * HOST_CHAR_BIT
)
4611 if (got_signed
|| got_unsigned
)
4613 return init_type (TYPE_CODE_INT
, nbits
/ TARGET_CHAR_BIT
,
4614 got_unsigned
? TYPE_FLAG_UNSIGNED
: 0, NULL
,
4618 return error_type (pp
, objfile
);
4621 /* A type defined as a subrange of itself, with bounds both 0, is void. */
4622 if (self_subrange
&& n2
== 0 && n3
== 0)
4623 return init_type (TYPE_CODE_VOID
, 1, 0, NULL
, objfile
);
4625 /* If n3 is zero and n2 is positive, we want a floating type, and n2
4626 is the width in bytes.
4628 Fortran programs appear to use this for complex types also. To
4629 distinguish between floats and complex, g77 (and others?) seem
4630 to use self-subranges for the complexes, and subranges of int for
4633 Also note that for complexes, g77 sets n2 to the size of one of
4634 the member floats, not the whole complex beast. My guess is that
4635 this was to work well with pre-COMPLEX versions of gdb. */
4637 if (n3
== 0 && n2
> 0)
4641 return init_type (TYPE_CODE_COMPLEX
, 2 * n2
, 0, NULL
, objfile
);
4645 return init_type (TYPE_CODE_FLT
, n2
, 0, NULL
, objfile
);
4649 /* If the upper bound is -1, it must really be an unsigned int. */
4651 else if (n2
== 0 && n3
== -1)
4653 /* It is unsigned int or unsigned long. */
4654 /* GCC 2.3.3 uses this for long long too, but that is just a GDB 3.5
4655 compatibility hack. */
4656 return init_type (TYPE_CODE_INT
, TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
4657 TYPE_FLAG_UNSIGNED
, NULL
, objfile
);
4660 /* Special case: char is defined (Who knows why) as a subrange of
4661 itself with range 0-127. */
4662 else if (self_subrange
&& n2
== 0 && n3
== 127)
4663 return init_type (TYPE_CODE_INT
, 1, 0, NULL
, objfile
);
4665 else if (current_symbol
&& SYMBOL_LANGUAGE (current_symbol
) == language_chill
4667 goto handle_true_range
;
4669 /* We used to do this only for subrange of self or subrange of int. */
4673 /* n3 actually gives the size. */
4674 return init_type (TYPE_CODE_INT
, - n3
, TYPE_FLAG_UNSIGNED
,
4677 return init_type (TYPE_CODE_INT
, 1, TYPE_FLAG_UNSIGNED
, NULL
, objfile
);
4679 return init_type (TYPE_CODE_INT
, 2, TYPE_FLAG_UNSIGNED
, NULL
, objfile
);
4681 /* -1 is used for the upper bound of (4 byte) "unsigned int" and
4682 "unsigned long", and we already checked for that,
4683 so don't need to test for it here. */
4685 /* I think this is for Convex "long long". Since I don't know whether
4686 Convex sets self_subrange, I also accept that particular size regardless
4687 of self_subrange. */
4688 else if (n3
== 0 && n2
< 0
4690 || n2
== - TARGET_LONG_LONG_BIT
/ TARGET_CHAR_BIT
))
4691 return init_type (TYPE_CODE_INT
, - n2
, 0, NULL
, objfile
);
4692 else if (n2
== -n3
-1)
4695 return init_type (TYPE_CODE_INT
, 1, 0, NULL
, objfile
);
4697 return init_type (TYPE_CODE_INT
, 2, 0, NULL
, objfile
);
4698 if (n3
== 0x7fffffff)
4699 return init_type (TYPE_CODE_INT
, 4, 0, NULL
, objfile
);
4702 /* We have a real range type on our hands. Allocate space and
4703 return a real pointer. */
4707 index_type
= builtin_type_int
;
4709 index_type
= *dbx_lookup_type (rangenums
);
4710 if (index_type
== NULL
)
4712 /* Does this actually ever happen? Is that why we are worrying
4713 about dealing with it rather than just calling error_type? */
4715 static struct type
*range_type_index
;
4717 complain (&range_type_base_complaint
, rangenums
[1]);
4718 if (range_type_index
== NULL
)
4720 init_type (TYPE_CODE_INT
, TARGET_INT_BIT
/ TARGET_CHAR_BIT
,
4721 0, "range type index type", NULL
);
4722 index_type
= range_type_index
;
4725 result_type
= create_range_type ((struct type
*) NULL
, index_type
, n2
, n3
);
4726 return (result_type
);
4729 /* Read in an argument list. This is a list of types, separated by commas
4730 and terminated with END. Return the list of types read in, or (struct type
4731 **)-1 if there is an error. */
4733 static struct type
**
4734 read_args (pp
, end
, objfile
)
4737 struct objfile
*objfile
;
4739 /* FIXME! Remove this arbitrary limit! */
4740 struct type
*types
[1024], **rval
; /* allow for fns of 1023 parameters */
4746 /* Invalid argument list: no ','. */
4747 return (struct type
**)-1;
4749 STABS_CONTINUE (pp
, objfile
);
4750 types
[n
++] = read_type (pp
, objfile
);
4752 (*pp
)++; /* get past `end' (the ':' character) */
4756 rval
= (struct type
**) xmalloc (2 * sizeof (struct type
*));
4758 else if (TYPE_CODE (types
[n
-1]) != TYPE_CODE_VOID
)
4760 rval
= (struct type
**) xmalloc ((n
+ 1) * sizeof (struct type
*));
4761 memset (rval
+ n
, 0, sizeof (struct type
*));
4765 rval
= (struct type
**) xmalloc (n
* sizeof (struct type
*));
4767 memcpy (rval
, types
, n
* sizeof (struct type
*));
4771 /* Common block handling. */
4773 /* List of symbols declared since the last BCOMM. This list is a tail
4774 of local_symbols. When ECOMM is seen, the symbols on the list
4775 are noted so their proper addresses can be filled in later,
4776 using the common block base address gotten from the assembler
4779 static struct pending
*common_block
;
4780 static int common_block_i
;
4782 /* Name of the current common block. We get it from the BCOMM instead of the
4783 ECOMM to match IBM documentation (even though IBM puts the name both places
4784 like everyone else). */
4785 static char *common_block_name
;
4787 /* Process a N_BCOMM symbol. The storage for NAME is not guaranteed
4788 to remain after this function returns. */
4791 common_block_start (name
, objfile
)
4793 struct objfile
*objfile
;
4795 if (common_block_name
!= NULL
)
4797 static struct complaint msg
= {
4798 "Invalid symbol data: common block within common block",
4802 common_block
= local_symbols
;
4803 common_block_i
= local_symbols
? local_symbols
->nsyms
: 0;
4804 common_block_name
= obsavestring (name
, strlen (name
),
4805 &objfile
-> symbol_obstack
);
4808 /* Process a N_ECOMM symbol. */
4811 common_block_end (objfile
)
4812 struct objfile
*objfile
;
4814 /* Symbols declared since the BCOMM are to have the common block
4815 start address added in when we know it. common_block and
4816 common_block_i point to the first symbol after the BCOMM in
4817 the local_symbols list; copy the list and hang it off the
4818 symbol for the common block name for later fixup. */
4821 struct pending
*new = 0;
4822 struct pending
*next
;
4825 if (common_block_name
== NULL
)
4827 static struct complaint msg
= {"ECOMM symbol unmatched by BCOMM", 0, 0};
4832 sym
= (struct symbol
*)
4833 obstack_alloc (&objfile
-> symbol_obstack
, sizeof (struct symbol
));
4834 memset (sym
, 0, sizeof (struct symbol
));
4835 /* Note: common_block_name already saved on symbol_obstack */
4836 SYMBOL_NAME (sym
) = common_block_name
;
4837 SYMBOL_CLASS (sym
) = LOC_BLOCK
;
4839 /* Now we copy all the symbols which have been defined since the BCOMM. */
4841 /* Copy all the struct pendings before common_block. */
4842 for (next
= local_symbols
;
4843 next
!= NULL
&& next
!= common_block
;
4846 for (j
= 0; j
< next
->nsyms
; j
++)
4847 add_symbol_to_list (next
->symbol
[j
], &new);
4850 /* Copy however much of COMMON_BLOCK we need. If COMMON_BLOCK is
4851 NULL, it means copy all the local symbols (which we already did
4854 if (common_block
!= NULL
)
4855 for (j
= common_block_i
; j
< common_block
->nsyms
; j
++)
4856 add_symbol_to_list (common_block
->symbol
[j
], &new);
4858 SYMBOL_TYPE (sym
) = (struct type
*) new;
4860 /* Should we be putting local_symbols back to what it was?
4863 i
= hashname (SYMBOL_NAME (sym
));
4864 SYMBOL_VALUE_CHAIN (sym
) = global_sym_chain
[i
];
4865 global_sym_chain
[i
] = sym
;
4866 common_block_name
= NULL
;
4869 /* Add a common block's start address to the offset of each symbol
4870 declared to be in it (by being between a BCOMM/ECOMM pair that uses
4871 the common block name). */
4874 fix_common_block (sym
, valu
)
4878 struct pending
*next
= (struct pending
*) SYMBOL_TYPE (sym
);
4879 for ( ; next
; next
= next
->next
)
4882 for (j
= next
->nsyms
- 1; j
>= 0; j
--)
4883 SYMBOL_VALUE_ADDRESS (next
->symbol
[j
]) += valu
;
4889 /* What about types defined as forward references inside of a small lexical
4891 /* Add a type to the list of undefined types to be checked through
4892 once this file has been read in. */
4895 add_undefined_type (type
)
4898 if (undef_types_length
== undef_types_allocated
)
4900 undef_types_allocated
*= 2;
4901 undef_types
= (struct type
**)
4902 xrealloc ((char *) undef_types
,
4903 undef_types_allocated
* sizeof (struct type
*));
4905 undef_types
[undef_types_length
++] = type
;
4908 /* Go through each undefined type, see if it's still undefined, and fix it
4909 up if possible. We have two kinds of undefined types:
4911 TYPE_CODE_ARRAY: Array whose target type wasn't defined yet.
4912 Fix: update array length using the element bounds
4913 and the target type's length.
4914 TYPE_CODE_STRUCT, TYPE_CODE_UNION: Structure whose fields were not
4915 yet defined at the time a pointer to it was made.
4916 Fix: Do a full lookup on the struct/union tag. */
4918 cleanup_undefined_types ()
4922 for (type
= undef_types
; type
< undef_types
+ undef_types_length
; type
++)
4924 switch (TYPE_CODE (*type
))
4927 case TYPE_CODE_STRUCT
:
4928 case TYPE_CODE_UNION
:
4929 case TYPE_CODE_ENUM
:
4931 /* Check if it has been defined since. Need to do this here
4932 as well as in check_typedef to deal with the (legitimate in
4933 C though not C++) case of several types with the same name
4934 in different source files. */
4935 if (TYPE_FLAGS (*type
) & TYPE_FLAG_STUB
)
4937 struct pending
*ppt
;
4939 /* Name of the type, without "struct" or "union" */
4940 char *typename
= TYPE_TAG_NAME (*type
);
4942 if (typename
== NULL
)
4944 static struct complaint msg
= {"need a type name", 0, 0};
4948 for (ppt
= file_symbols
; ppt
; ppt
= ppt
->next
)
4950 for (i
= 0; i
< ppt
->nsyms
; i
++)
4952 struct symbol
*sym
= ppt
->symbol
[i
];
4954 if (SYMBOL_CLASS (sym
) == LOC_TYPEDEF
4955 && SYMBOL_NAMESPACE (sym
) == STRUCT_NAMESPACE
4956 && (TYPE_CODE (SYMBOL_TYPE (sym
)) ==
4958 && STREQ (SYMBOL_NAME (sym
), typename
))
4960 memcpy (*type
, SYMBOL_TYPE (sym
),
4961 sizeof (struct type
));
4971 static struct complaint msg
= {"\
4972 GDB internal error. cleanup_undefined_types with bad type %d.", 0, 0};
4973 complain (&msg
, TYPE_CODE (*type
));
4979 undef_types_length
= 0;
4982 /* Scan through all of the global symbols defined in the object file,
4983 assigning values to the debugging symbols that need to be assigned
4984 to. Get these symbols from the minimal symbol table. */
4987 scan_file_globals (objfile
)
4988 struct objfile
*objfile
;
4991 struct minimal_symbol
*msymbol
;
4992 struct symbol
*sym
, *prev
, *rsym
;
4993 struct objfile
*resolve_objfile
;
4995 /* SVR4 based linkers copy referenced global symbols from shared
4996 libraries to the main executable.
4997 If we are scanning the symbols for a shared library, try to resolve
4998 them from the minimal symbols of the main executable first. */
5000 if (symfile_objfile
&& objfile
!= symfile_objfile
)
5001 resolve_objfile
= symfile_objfile
;
5003 resolve_objfile
= objfile
;
5007 /* Avoid expensive loop through all minimal symbols if there are
5008 no unresolved symbols. */
5009 for (hash
= 0; hash
< HASHSIZE
; hash
++)
5011 if (global_sym_chain
[hash
])
5014 if (hash
>= HASHSIZE
)
5017 for (msymbol
= resolve_objfile
-> msymbols
;
5018 msymbol
&& SYMBOL_NAME (msymbol
) != NULL
;
5023 /* Skip static symbols. */
5024 switch (MSYMBOL_TYPE (msymbol
))
5036 /* Get the hash index and check all the symbols
5037 under that hash index. */
5039 hash
= hashname (SYMBOL_NAME (msymbol
));
5041 for (sym
= global_sym_chain
[hash
]; sym
;)
5043 if (SYMBOL_NAME (msymbol
)[0] == SYMBOL_NAME (sym
)[0] &&
5044 STREQ(SYMBOL_NAME (msymbol
) + 1, SYMBOL_NAME (sym
) + 1))
5047 struct alias_list
*aliases
;
5049 /* Splice this symbol out of the hash chain and
5050 assign the value we have to it. */
5053 SYMBOL_VALUE_CHAIN (prev
) = SYMBOL_VALUE_CHAIN (sym
);
5057 global_sym_chain
[hash
] = SYMBOL_VALUE_CHAIN (sym
);
5060 /* Check to see whether we need to fix up a common block. */
5061 /* Note: this code might be executed several times for
5062 the same symbol if there are multiple references. */
5064 /* If symbol has aliases, do minimal symbol fixups for each.
5065 These live aliases/references weren't added to
5066 global_sym_chain hash but may also need to be fixed up. */
5067 /* FIXME: Maybe should have added aliases to the global chain, resolved symbol name, then treated aliases as normal
5068 symbols? Still, we wouldn't want to add_to_list. */
5069 /* Now do the same for each alias of this symbol */
5071 aliases
= SYMBOL_ALIASES (sym
);
5074 if (SYMBOL_CLASS (rsym
) == LOC_BLOCK
)
5076 fix_common_block (rsym
,
5077 SYMBOL_VALUE_ADDRESS (msymbol
));
5081 SYMBOL_VALUE_ADDRESS (rsym
)
5082 = SYMBOL_VALUE_ADDRESS (msymbol
);
5084 SYMBOL_SECTION (rsym
) = SYMBOL_SECTION (msymbol
);
5087 rsym
= aliases
->sym
;
5088 aliases
= aliases
->next
;
5097 sym
= SYMBOL_VALUE_CHAIN (prev
);
5101 sym
= global_sym_chain
[hash
];
5107 sym
= SYMBOL_VALUE_CHAIN (sym
);
5111 if (resolve_objfile
== objfile
)
5113 resolve_objfile
= objfile
;
5116 /* Change the storage class of any remaining unresolved globals to
5117 LOC_UNRESOLVED and remove them from the chain. */
5118 for (hash
= 0; hash
< HASHSIZE
; hash
++)
5120 sym
= global_sym_chain
[hash
];
5124 sym
= SYMBOL_VALUE_CHAIN (sym
);
5126 /* Change the symbol address from the misleading chain value
5128 SYMBOL_VALUE_ADDRESS (prev
) = 0;
5130 /* Complain about unresolved common block symbols. */
5131 if (SYMBOL_CLASS (prev
) == LOC_STATIC
)
5132 SYMBOL_CLASS (prev
) = LOC_UNRESOLVED
;
5134 complain (&unresolved_sym_chain_complaint
,
5135 objfile
-> name
, SYMBOL_NAME (prev
));
5138 memset (global_sym_chain
, 0, sizeof (global_sym_chain
));
5141 /* Initialize anything that needs initializing when starting to read
5142 a fresh piece of a symbol file, e.g. reading in the stuff corresponding
5150 /* Initialize anything that needs initializing when a completely new
5151 symbol file is specified (not just adding some symbols from another
5152 file, e.g. a shared library). */
5155 stabsread_new_init ()
5157 /* Empty the hash table of global syms looking for values. */
5158 memset (global_sym_chain
, 0, sizeof (global_sym_chain
));
5161 /* Initialize anything that needs initializing at the same time as
5162 start_symtab() is called. */
5166 global_stabs
= NULL
; /* AIX COFF */
5167 /* Leave FILENUM of 0 free for builtin types and this file's types. */
5168 n_this_object_header_files
= 1;
5169 type_vector_length
= 0;
5170 type_vector
= (struct type
**) 0;
5172 /* FIXME: If common_block_name is not already NULL, we should complain(). */
5173 common_block_name
= NULL
;
5178 /* Call after end_symtab() */
5184 free ((char *) type_vector
);
5187 type_vector_length
= 0;
5188 previous_stab_code
= 0;
5192 finish_global_stabs (objfile
)
5193 struct objfile
*objfile
;
5197 patch_block_stabs (global_symbols
, global_stabs
, objfile
);
5198 free ((PTR
) global_stabs
);
5199 global_stabs
= NULL
;
5203 /* Initializer for this module */
5206 _initialize_stabsread ()
5208 undef_types_allocated
= 20;
5209 undef_types_length
= 0;
5210 undef_types
= (struct type
**)
5211 xmalloc (undef_types_allocated
* sizeof (struct type
*));