1 /* Read os9/os9k symbol tables and convert to internal format, for GDB.
2 Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
21 /* This module provides three functions: os9k_symfile_init,
22 which initializes to read a symbol file; os9k_new_init, which
23 discards existing cached information when all symbols are being
24 discarded; and os9k_symfile_read, which reads a symbol table
27 os9k_symfile_read only does the minimum work necessary for letting the
28 user "name" things symbolically; it does not read the entire symtab.
29 Instead, it reads the external and static symbols and puts them in partial
30 symbol tables. When more extensive information is requested of a
31 file, the corresponding partial symbol table is mutated into a full
32 fledged symbol table by going back and reading the symbols
33 for real. os9k_psymtab_to_symtab() is the function that does this */
39 #if defined(USG) || defined(__CYGNUSCLIB__)
40 #include <sys/types.h>
45 #include <sys/param.h>
52 #include "breakpoint.h"
55 #include "gdbcore.h" /* for bfd stuff */
56 #include "libbfd.h" /* FIXME Secret internal BFD stuff (bfd_read) */
57 #include "libaout.h" /* FIXME Secret internal BFD stuff for a.out */
61 #include "gdb-stabs.h"
63 #include "language.h" /* Needed inside partial-stab.h */
64 #include "complaints.h"
66 #include "stabsread.h"
68 #if !defined (SEEK_SET)
73 /* Each partial symbol table entry contains a pointer to private data for the
74 read_symtab() function to use when expanding a partial symbol table entry
75 to a full symbol table entry.
77 For dbxread this structure contains the offset within the file symbol table
78 of first local symbol for this file, and count of the section
79 of the symbol table devoted to this file's symbols (actually, the section
80 bracketed may contain more than just this file's symbols). It also contains
81 further information needed to locate the symbols if they are in an ELF file.
83 If ldsymcnt is 0, the only reason for this thing's existence is the
84 dependency list. Nothing else will happen when it is read in. */
86 #define LDSYMOFF(p) (((struct symloc *)((p)->read_symtab_private))->ldsymoff)
87 #define LDSYMCNT(p) (((struct symloc *)((p)->read_symtab_private))->ldsymnum)
94 /* Remember what we deduced to be the source language of this psymtab. */
95 static enum language psymtab_language
= language_unknown
;
97 /* keep partial symbol table file nested depth */
98 static int psymfile_depth
= 0;
100 /* keep symbol table file nested depth */
101 static int symfile_depth
= 0;
103 /* Nonzero means give verbose info on gdb action. From main.c. */
104 extern int info_verbose
;
106 extern int previous_stab_code
;
108 /* The BFD for this file -- implicit parameter to next_symbol_text. */
109 static bfd
*symfile_bfd
;
111 /* Name of last function encountered. Used in Solaris to approximate
112 object file boundaries. */
113 static char *last_function_name
;
115 /* Complaints about the symbols we have encountered. */
116 extern struct complaint lbrac_complaint
;
118 extern struct complaint unknown_symtype_complaint
;
120 extern struct complaint unknown_symchar_complaint
;
122 extern struct complaint lbrac_rbrac_complaint
;
124 extern struct complaint repeated_header_complaint
;
126 extern struct complaint repeated_header_name_complaint
;
128 static struct complaint lbrac_unmatched_complaint
=
129 {"unmatched Increment Block Entry before symtab pos %d", 0, 0};
131 static struct complaint lbrac_mismatch_complaint
=
132 {"IBE/IDE symbol mismatch at symtab pos %d", 0, 0};
135 /* Local function prototypes */
137 os9k_read_ofile_symtab
PARAMS ((struct partial_symtab
*));
140 os9k_psymtab_to_symtab
PARAMS ((struct partial_symtab
*));
143 os9k_psymtab_to_symtab_1
PARAMS ((struct partial_symtab
*));
146 read_os9k_psymtab
PARAMS ((struct section_offsets
*, struct objfile
*,
150 init_psymbol_list
PARAMS ((struct objfile
*));
153 os9k_next_symbol_text
PARAMS ((void));
156 fill_sym
PARAMS ((FILE *, bfd
*));
159 os9k_symfile_init
PARAMS ((struct objfile
*));
162 os9k_new_init
PARAMS ((struct objfile
*));
165 os9k_symfile_read
PARAMS ((struct objfile
*, struct section_offsets
*, int));
168 os9k_symfile_finish
PARAMS ((struct objfile
*));
171 os9k_process_one_symbol
PARAMS ((int, int, CORE_ADDR
, char *,
172 struct section_offsets
*, struct objfile
*));
174 static struct partial_symtab
*
175 os9k_start_psymtab
PARAMS ((struct objfile
*, struct section_offsets
*, char *,
176 CORE_ADDR
, int, int, struct partial_symbol
*,
177 struct partial_symbol
*));
179 static struct partial_symtab
*
180 os9k_end_psymtab
PARAMS ((struct partial_symtab
*, char **, int, int, CORE_ADDR
,
181 struct partial_symtab
**, int));
184 record_minimal_symbol
PARAMS ((char *, CORE_ADDR
, int, struct objfile
*));
186 #define HANDLE_RBRAC(val) \
187 if ((val) > pst->texthigh) pst->texthigh = (val);
189 #define SWAP_STBHDR(hdrp, abfd) \
191 (hdrp)->fmtno = bfd_get_16(abfd, (unsigned char *)&(hdrp)->fmtno); \
192 (hdrp)->crc = bfd_get_32(abfd, (unsigned char *)&(hdrp)->crc); \
193 (hdrp)->offset = bfd_get_32(abfd, (unsigned char *)&(hdrp)->offset); \
194 (hdrp)->nsym = bfd_get_32(abfd, (unsigned char *)&(hdrp)->nsym); \
196 #define SWAP_STBSYM(symp, abfd) \
198 (symp)->value = bfd_get_32(abfd, (unsigned char *)&(symp)->value); \
199 (symp)->type = bfd_get_16(abfd, (unsigned char *)&(symp)->type); \
200 (symp)->stroff = bfd_get_32(abfd, (unsigned char *)&(symp)->stroff); \
210 record_minimal_symbol (name
, address
, type
, objfile
)
214 struct objfile
*objfile
;
216 enum minimal_symbol_type ms_type
;
220 case N_TEXT
: ms_type
= mst_text
; break;
221 case N_DATA
: ms_type
= mst_data
; break;
222 case N_BSS
: ms_type
= mst_bss
; break;
223 case N_RDATA
: ms_type
= mst_bss
; break;
224 case N_IDATA
: ms_type
= mst_data
; break;
225 case N_ABS
: ms_type
= mst_abs
; break;
226 default: ms_type
= mst_unknown
; break;
229 prim_record_minimal_symbol
230 (obsavestring (name
, strlen(name
), &objfile
->symbol_obstack
),
231 address
, ms_type
, objfile
);
234 /* read and process .stb file and store in minimal symbol table */
235 typedef char mhhdr
[80];
250 #define STBSYMSIZE 10
253 read_minimal_symbols(objfile
)
254 struct objfile
*objfile
;
259 struct stbsymbol sym
;
261 char buf
[64], buf1
[128];
264 if (fp
== NULL
) return;
265 abfd
= objfile
->obfd
;
266 fread(&hdr
.comhdr
[0], sizeof(mhhdr
), 1, fp
);
277 fread(&hdr
.fmtno
, sizeof(hdr
.fmtno
), 1, fp
);
278 fread(&hdr
.crc
, sizeof(hdr
.crc
), 1, fp
);
279 fread(&hdr
.offset
, sizeof(hdr
.offset
), 1, fp
);
280 fread(&hdr
.nsym
, sizeof(hdr
.nsym
), 1, fp
);
281 SWAP_STBHDR(&hdr
, abfd
);
284 init_minimal_symbol_collection();
286 for (i
= hdr
.nsym
; i
> 0; i
--) {
287 fseek(fp
, (long)off
, 0);
288 fread(&sym
.value
, sizeof(sym
.value
), 1, fp
);
289 fread(&sym
.type
, sizeof(sym
.type
), 1, fp
);
290 fread(&sym
.stroff
, sizeof(sym
.stroff
), 1, fp
);
291 SWAP_STBSYM (&sym
, abfd
);
292 fseek(fp
, (long)sym
.stroff
, 0);
301 record_minimal_symbol(buf1
, sym
.value
, sym
.type
&7, objfile
);
304 install_minimal_symbols (objfile
);
308 /* Scan and build partial symbols for a symbol file.
309 We have been initialized by a call to os9k_symfile_init, which
310 put all the relevant info into a "struct os9k_symfile_info",
311 hung off the objfile structure.
313 SECTION_OFFSETS contains offsets relative to which the symbols in the
314 various sections are (depending where the sections were actually loaded).
315 MAINLINE is true if we are reading the main symbol
316 table (as opposed to a shared lib or dynamically loaded file). */
319 os9k_symfile_read (objfile
, section_offsets
, mainline
)
320 struct objfile
*objfile
;
321 struct section_offsets
*section_offsets
;
322 int mainline
; /* FIXME comments above */
327 struct cleanup
*back_to
;
329 sym_bfd
= objfile
->obfd
;
330 /* If we are reinitializing, or if we have never loaded syms yet, init */
331 if (mainline
|| objfile
->global_psymbols
.size
== 0 ||
332 objfile
->static_psymbols
.size
== 0)
333 init_psymbol_list (objfile
);
336 back_to
= make_cleanup (really_free_pendings
, 0);
338 make_cleanup (discard_minimal_symbols
, 0);
339 read_minimal_symbols (objfile
);
341 /* Now that the symbol table data of the executable file are all in core,
342 process them and define symbols accordingly. */
343 read_os9k_psymtab (section_offsets
, objfile
,
344 bfd_section_vma (sym_bfd
, DBX_TEXT_SECT (objfile
)),
345 bfd_section_size (sym_bfd
, DBX_TEXT_SECT (objfile
)));
347 if (!have_partial_symbols ()) {
349 printf_filtered ("(no debugging symbols found)...");
353 do_cleanups (back_to
);
356 /* Initialize anything that needs initializing when a completely new
357 symbol file is specified (not just adding some symbols from another
358 file, e.g. a shared library). */
361 os9k_new_init (ignore
)
362 struct objfile
*ignore
;
364 stabsread_new_init ();
365 buildsym_new_init ();
368 init_header_files ();
372 /* os9k_symfile_init ()
373 It is passed a struct objfile which contains, among other things,
374 the BFD for the file whose symbols are being read, and a slot for a pointer
375 to "private data" which we fill with goodies.
377 Since BFD doesn't know how to read debug symbols in a format-independent
378 way (and may never do so...), we have to do it ourselves. We will never
379 be called unless this is an a.out (or very similar) file.
380 FIXME, there should be a cleaner peephole into the BFD environment here. */
383 os9k_symfile_init (objfile
)
384 struct objfile
*objfile
;
387 bfd
*sym_bfd
= objfile
->obfd
;
388 char *name
= bfd_get_filename (sym_bfd
);
389 char dbgname
[64], stbname
[64];
394 strcpy(dbgname
, name
);
395 strcat(dbgname
, ".dbg");
396 strcpy(stbname
, name
);
397 strcat(stbname
, ".stb");
399 if ((symfile
= fopen(dbgname
, "r")) == NULL
) {
400 warning("Symbol file %s not found", dbgname
);
402 objfile
->auxf2
= symfile
;
404 if ((minfile
= fopen(stbname
, "r")) == NULL
) {
405 warning("Symbol file %s not found", stbname
);
407 objfile
->auxf1
= minfile
;
409 /* Allocate struct to keep track of the symfile */
410 objfile
->sym_stab_info
= (PTR
)
411 xmmalloc (objfile
-> md
, sizeof (struct dbx_symfile_info
));
412 DBX_SYMFILE_INFO (objfile
)->stab_section_info
= NULL
;
414 DBX_TEXT_SECT (objfile
) = bfd_get_section_by_name (sym_bfd
, ".text");
415 if (!DBX_TEXT_SECT (objfile
))
416 error ("Can't find .text section in file");
418 DBX_SYMBOL_SIZE (objfile
) = 0; /* variable size symbol */
419 DBX_SYMCOUNT (objfile
) = 0; /* used to be bfd_get_symcount(sym_bfd) */
420 DBX_SYMTAB_OFFSET (objfile
) = 0; /* used to be SYMBOL_TABLE_OFFSET */
423 /* Perform any local cleanups required when we are done with a particular
424 objfile. I.E, we are in the process of discarding all symbol information
425 for an objfile, freeing up all memory held for it, and unlinking the
426 objfile struct from the global list of known objfiles. */
429 os9k_symfile_finish (objfile
)
430 struct objfile
*objfile
;
432 if (objfile
->sym_stab_info
!= NULL
)
434 mfree (objfile
-> md
, objfile
->sym_stab_info
);
437 free_header_files ();
450 #define SWAP_DBGHDR(hdrp, abfd) \
452 (hdrp)->sync = bfd_get_32(abfd, (unsigned char *)&(hdrp)->sync); \
453 (hdrp)->rev = bfd_get_16(abfd, (unsigned char *)&(hdrp)->rev); \
454 (hdrp)->crc = bfd_get_32(abfd, (unsigned char *)&(hdrp)->crc); \
455 (hdrp)->os = bfd_get_16(abfd, (unsigned char *)&(hdrp)->os); \
456 (hdrp)->cpu = bfd_get_16(abfd, (unsigned char *)&(hdrp)->cpu); \
459 #define N_SYM_CMPLR 0
460 #define N_SYM_SLINE 1
462 #define N_SYM_LBRAC 3
463 #define N_SYM_RBRAC 4
466 struct internal_symstruct
{
472 static struct internal_symstruct symbol
;
473 static struct internal_symstruct
*symbuf
= &symbol
;
474 static char strbuf
[256];
477 fill_sym (dbg_file
, abfd
)
486 int nbytes
= fread(&si
, sizeof(si
), 1, dbg_file
);
490 perror_with_name ("reading .dbg file.");
493 symbuf
->n_strx
= NULL
;
494 symbuf
->n_type
= bfd_get_16 (abfd
, (unsigned char *)&si
);
495 symbuf
->n_type
= 0xf & symbuf
->n_type
;
496 switch (symbuf
->n_type
)
499 fread(&si
, sizeof(si
), 1, dbg_file
);
500 symbuf
->n_desc
= bfd_get_16(abfd
, (unsigned char *)&si
);
503 fread(&li
, sizeof(li
), 1, dbg_file
);
504 symbuf
->n_value
= bfd_get_32(abfd
, (unsigned char *)&li
);
505 fread(&li
, sizeof(li
), 1, dbg_file
);
506 li
= bfd_get_32(abfd
, (unsigned char *)&li
);
507 symbuf
->n_strx
= (char *)(li
>> 12);
508 symbuf
->n_desc
= li
& 0xfff;
511 fread(&li
, sizeof(li
), 1, dbg_file
);
512 symbuf
->n_value
= bfd_get_32(abfd
, (unsigned char *)&li
);
516 strbuf
[si
++] = (char) ii
;
517 } while (ii
!= 0 || si
% 2 != 0);
518 symbuf
->n_strx
= strbuf
;
521 fread(&li
, sizeof(li
), 1, dbg_file
);
522 symbuf
->n_value
= bfd_get_32(abfd
, (unsigned char *)&li
);
525 fread(&li
, sizeof(li
), 1, dbg_file
);
526 symbuf
->n_value
= bfd_get_32(abfd
, (unsigned char *)&li
);
534 /* Initializes storage for all of the partial symbols that will be
535 created by read_dbx_symtab and subsidiaries. */
538 init_psymbol_list (objfile
)
539 struct objfile
*objfile
;
541 /* Free any previously allocated psymbol lists. */
542 if (objfile
-> global_psymbols
.list
)
543 mfree (objfile
-> md
, (PTR
)objfile
-> global_psymbols
.list
);
544 if (objfile
-> static_psymbols
.list
)
545 mfree (objfile
-> md
, (PTR
)objfile
-> static_psymbols
.list
);
547 /* Current best guess is that there are approximately a twentieth
548 of the total symbols (in a debugging file) are global or static
550 objfile
-> global_psymbols
.size
= DBX_SYMCOUNT (objfile
) / 10;
551 objfile
-> static_psymbols
.size
= DBX_SYMCOUNT (objfile
) / 10;
552 objfile
-> global_psymbols
.next
= objfile
-> global_psymbols
.list
= (struct partial_symbol
*)
553 xmmalloc (objfile
-> md
, objfile
-> global_psymbols
.size
* sizeof (struct partial_symbol
));
554 objfile
-> static_psymbols
.next
= objfile
-> static_psymbols
.list
= (struct partial_symbol
*)
555 xmmalloc (objfile
-> md
, objfile
-> static_psymbols
.size
* sizeof (struct partial_symbol
));
558 /* Given pointers to an a.out symbol table in core containing dbx
559 style data, setup partial_symtab's describing each source file for
560 which debugging information is available.
561 SYMFILE_NAME is the name of the file we are reading from
562 and SECTION_OFFSETS is the set of offsets for the various sections
563 of the file (a set of zeros if the mainline program). */
566 read_os9k_psymtab (section_offsets
, objfile
, text_addr
, text_size
)
567 struct section_offsets
*section_offsets
;
568 struct objfile
*objfile
;
572 register struct internal_symstruct
*bufp
= 0; /* =0 avoids gcc -Wall glitch*/
573 register char *namestring
;
575 int past_first_source_file
= 0;
576 CORE_ADDR last_o_file_start
= 0;
577 struct cleanup
*back_to
;
582 /* End of the text segment of the executable file. */
583 static CORE_ADDR end_of_text_addr
;
585 /* Current partial symtab */
586 static struct partial_symtab
*pst
= 0;
588 /* List of current psymtab's include files */
589 char **psymtab_include_list
;
590 int includes_allocated
;
593 /* Index within current psymtab dependency list */
594 struct partial_symtab
**dependency_list
;
595 int dependencies_used
, dependencies_allocated
;
597 includes_allocated
= 30;
599 psymtab_include_list
= (char **) alloca (includes_allocated
*
602 dependencies_allocated
= 30;
603 dependencies_used
= 0;
605 (struct partial_symtab
**) alloca (dependencies_allocated
*
606 sizeof (struct partial_symtab
*));
608 last_source_file
= NULL
;
610 #ifdef END_OF_TEXT_DEFAULT
611 end_of_text_addr
= END_OF_TEXT_DEFAULT
;
613 end_of_text_addr
= text_addr
+ section_offsets
->offsets
[SECT_OFF_TEXT
]
614 + text_size
; /* Relocate */
617 abfd
= objfile
->obfd
;
620 fread(&hdr
.sync
, sizeof(hdr
.sync
), 1, fp
);
621 fread(&hdr
.rev
, sizeof(hdr
.rev
), 1, fp
);
622 fread(&hdr
.crc
, sizeof(hdr
.crc
), 1, fp
);
623 fread(&hdr
.os
, sizeof(hdr
.os
), 1, fp
);
624 fread(&hdr
.cpu
, sizeof(hdr
.cpu
), 1, fp
);
625 SWAP_DBGHDR(&hdr
, abfd
);
633 /* Get the symbol for this run and pull out some info */
634 QUIT
; /* allow this to be interruptable */
635 cursymoffset
= ftell(objfile
->auxf2
);
636 ret
= fill_sym(objfile
->auxf2
, abfd
);
641 /* Special case to speed up readin. */
642 if (bufp
->n_type
== (short)N_SYM_SLINE
) continue;
644 #define CUR_SYMBOL_VALUE bufp->n_value
647 switch (bufp
->n_type
)
655 CUR_SYMBOL_VALUE
+= ANOFFSET(section_offsets
, SECT_OFF_TEXT
);
656 if (psymfile_depth
== 1 && pst
)
658 os9k_end_psymtab (pst
, psymtab_include_list
, includes_used
,
659 symnum
, CUR_SYMBOL_VALUE
,
660 dependency_list
, dependencies_used
);
661 pst
= (struct partial_symtab
*) 0;
663 dependencies_used
= 0;
668 case N_SYM_SYM
: /* Typedef or automatic variable. */
669 namestring
= bufp
->n_strx
;
670 p
= (char *) strchr (namestring
, ':');
672 continue; /* Not a debugging symbol. */
674 /* Main processing section for debugging symbols which
675 the initial read through the symbol tables needs to worry
676 about. If we reach this point, the symbol which we are
677 considering is definitely one we are interested in.
678 p must also contain the (valid) index into the namestring
679 which indicates the debugging type symbol. */
686 enum language tmp_language
;
688 valu
= CUR_SYMBOL_VALUE
+
689 ANOFFSET (section_offsets
, SECT_OFF_TEXT
);
690 past_first_source_file
= 1;
692 if (psymfile_depth
== 0) {
694 pst
= os9k_start_psymtab (objfile
, section_offsets
,
698 objfile
-> global_psymbols
.next
,
699 objfile
-> static_psymbols
.next
);
700 } else { /* this is a include file */
701 tmp_language
= deduce_language_from_filename (namestring
);
702 if (tmp_language
!= language_unknown
703 && (tmp_language
!= language_c
704 || psymtab_language
!= language_cplus
))
705 psymtab_language
= tmp_language
;
708 if (pst && STREQ (namestring, pst->filename))
712 for (i = 0; i < includes_used; i++)
713 if (STREQ (namestring, psymtab_include_list[i]))
723 psymtab_include_list
[includes_used
++] = namestring
;
724 if (includes_used
>= includes_allocated
)
726 char **orig
= psymtab_include_list
;
728 psymtab_include_list
= (char **)
729 alloca ((includes_allocated
*= 2) * sizeof (char *));
730 memcpy ((PTR
)psymtab_include_list
, (PTR
)orig
,
731 includes_used
* sizeof (char *));
740 ADD_PSYMBOL_ADDR_TO_LIST (namestring
, p
- namestring
,
741 VAR_NAMESPACE
, LOC_STATIC
,
742 objfile
->static_psymbols
,
744 psymtab_language
, objfile
);
747 ADD_PSYMBOL_ADDR_TO_LIST (namestring
, p
- namestring
,
748 VAR_NAMESPACE
, LOC_STATIC
,
749 objfile
->global_psymbols
,
751 psymtab_language
, objfile
);
755 if (p
!= namestring
) /* a name is there, not just :T... */
757 ADD_PSYMBOL_TO_LIST (namestring
, p
- namestring
,
758 STRUCT_NAMESPACE
, LOC_TYPEDEF
,
759 objfile
->static_psymbols
,
761 psymtab_language
, objfile
);
764 /* Also a typedef with the same name. */
765 ADD_PSYMBOL_TO_LIST (namestring
, p
- namestring
,
766 VAR_NAMESPACE
, LOC_TYPEDEF
,
767 objfile
->static_psymbols
,
768 CUR_SYMBOL_VALUE
, psymtab_language
,
772 /* The semantics of C++ state that "struct foo { ... }"
773 also defines a typedef for "foo". Unfortuantely, cfront
774 never makes the typedef when translating from C++ to C.
775 We make the typedef here so that "ptype foo" works as
776 expected for cfront translated code. */
777 else if (psymtab_language
== language_cplus
)
779 /* Also a typedef with the same name. */
780 ADD_PSYMBOL_TO_LIST (namestring
, p
- namestring
,
781 VAR_NAMESPACE
, LOC_TYPEDEF
,
782 objfile
->static_psymbols
,
783 CUR_SYMBOL_VALUE
, psymtab_language
,
789 if (p
!= namestring
) /* a name is there, not just :T... */
791 ADD_PSYMBOL_TO_LIST (namestring
, p
- namestring
,
792 VAR_NAMESPACE
, LOC_TYPEDEF
,
793 objfile
->static_psymbols
,
795 psymtab_language
, objfile
);
798 /* If this is an enumerated type, we need to
799 add all the enum constants to the partial symbol
800 table. This does not cover enums without names, e.g.
801 "enum {a, b} c;" in C, but fortunately those are
802 rare. There is no way for GDB to find those from the
803 enum type without spending too much time on it. Thus
804 to solve this problem, the compiler needs to put out the
805 enum in a nameless type. GCC2 does this. */
807 /* We are looking for something of the form
808 <name> ":" ("t" | "T") [<number> "="] "e" <size>
809 {<constant> ":" <value> ","} ";". */
811 /* Skip over the colon and the 't' or 'T'. */
813 /* This type may be given a number. Also, numbers can come
814 in pairs like (0,26). Skip over it. */
815 while ((*p
>= '0' && *p
<= '9')
816 || *p
== '(' || *p
== ',' || *p
== ')'
822 /* We have found an enumerated type. skip size */
823 while (*p
>= '0' && *p
<= '9') p
++;
824 /* According to comments in read_enum_type
825 a comma could end it instead of a semicolon.
826 I don't know where that happens.
828 while (*p
&& *p
!= ';' && *p
!= ',')
832 /* Check for and handle cretinous dbx symbol name
835 p = next_symbol_text ();
838 /* Point to the character after the name
839 of the enum constant. */
840 for (q
= p
; *q
&& *q
!= ':'; q
++)
842 /* Note that the value doesn't matter for
843 enum constants in psymtabs, just in symtabs. */
844 ADD_PSYMBOL_TO_LIST (p
, q
- p
,
845 VAR_NAMESPACE
, LOC_CONST
,
846 objfile
->static_psymbols
, 0,
847 psymtab_language
, objfile
);
848 /* Point past the name. */
850 /* Skip over the value. */
851 while (*p
&& *p
!= ',')
853 /* Advance past the comma. */
860 /* Constant, e.g. from "const" in Pascal. */
861 ADD_PSYMBOL_TO_LIST (namestring
, p
- namestring
,
862 VAR_NAMESPACE
, LOC_CONST
,
863 objfile
->static_psymbols
, CUR_SYMBOL_VALUE
,
864 psymtab_language
, objfile
);
868 CUR_SYMBOL_VALUE
+= ANOFFSET(section_offsets
, SECT_OFF_TEXT
);
869 if (pst
&& pst
->textlow
== 0)
870 pst
->textlow
= CUR_SYMBOL_VALUE
;
872 ADD_PSYMBOL_TO_LIST (namestring
, p
- namestring
,
873 VAR_NAMESPACE
, LOC_BLOCK
,
874 objfile
->static_psymbols
, CUR_SYMBOL_VALUE
,
875 psymtab_language
, objfile
);
879 CUR_SYMBOL_VALUE
+= ANOFFSET(section_offsets
, SECT_OFF_TEXT
);
880 if (pst
&& pst
->textlow
== 0)
881 pst
->textlow
= CUR_SYMBOL_VALUE
;
883 ADD_PSYMBOL_TO_LIST (namestring
, p
- namestring
,
884 VAR_NAMESPACE
, LOC_BLOCK
,
885 objfile
->global_psymbols
, CUR_SYMBOL_VALUE
,
886 psymtab_language
, objfile
);
894 /* It is a C++ nested symbol. We don't need to record it
895 (I don't think); if we try to look up foo::bar::baz,
896 then symbols for the symtab containing foo should get
898 /* Someone says sun cc puts out symbols like
899 /foo/baz/maclib::/usr/local/bin/maclib,
900 which would get here with a symbol type of ':'. */
904 /* Unexpected symbol descriptor. The second and subsequent stabs
905 of a continued stab can show up here. The question is
906 whether they ever can mimic a normal stab--it would be
907 nice if not, since we certainly don't want to spend the
908 time searching to the end of every string looking for
911 complain (&unknown_symchar_complaint
, p
[1]);
916 CUR_SYMBOL_VALUE
+= ANOFFSET(section_offsets
, SECT_OFF_TEXT
);
918 HANDLE_RBRAC(CUR_SYMBOL_VALUE
);
925 /* If we haven't found it yet, ignore it. It's probably some
926 new type we don't know about yet. */
927 complain (&unknown_symtype_complaint
,
928 local_hex_string ((unsigned long) bufp
->n_type
));
933 DBX_SYMCOUNT (objfile
) = symnum
;
935 /* If there's stuff to be cleaned up, clean it up. */
936 if (DBX_SYMCOUNT (objfile
) > 0
937 /*FIXME, does this have a bug at start address 0? */
939 && objfile
-> ei
.entry_point
< bufp
->n_value
940 && objfile
-> ei
.entry_point
>= last_o_file_start
)
942 objfile
-> ei
.entry_file_lowpc
= last_o_file_start
;
943 objfile
-> ei
.entry_file_highpc
= bufp
->n_value
;
948 os9k_end_psymtab (pst
, psymtab_include_list
, includes_used
,
949 symnum
, end_of_text_addr
,
950 dependency_list
, dependencies_used
);
953 do_cleanups (back_to);
957 /* Allocate and partially fill a partial symtab. It will be
958 completely filled at the end of the symbol list.
960 SYMFILE_NAME is the name of the symbol-file we are reading from, and ADDR
961 is the address relative to which its symbols are (incremental) or 0
965 static struct partial_symtab
*
966 os9k_start_psymtab (objfile
, section_offsets
,
967 filename
, textlow
, ldsymoff
,ldsymcnt
, global_syms
, static_syms
)
968 struct objfile
*objfile
;
969 struct section_offsets
*section_offsets
;
974 struct partial_symbol
*global_syms
;
975 struct partial_symbol
*static_syms
;
977 struct partial_symtab
*result
=
978 start_psymtab_common(objfile
, section_offsets
,
979 filename
, textlow
, global_syms
, static_syms
);
981 result
->read_symtab_private
= (char *)
982 obstack_alloc (&objfile
-> psymbol_obstack
, sizeof (struct symloc
));
984 LDSYMOFF(result
) = ldsymoff
;
985 LDSYMCNT(result
) = ldsymcnt
;
986 result
->read_symtab
= os9k_psymtab_to_symtab
;
988 /* Deduce the source language from the filename for this psymtab. */
989 psymtab_language
= deduce_language_from_filename (filename
);
993 /* Close off the current usage of PST.
994 Returns PST or NULL if the partial symtab was empty and thrown away.
995 FIXME: List variables and peculiarities of same. */
997 static struct partial_symtab
*
998 os9k_end_psymtab (pst
, include_list
, num_includes
, capping_symbol_cnt
,
999 capping_text
, dependency_list
, number_dependencies
)
1000 struct partial_symtab
*pst
;
1001 char **include_list
;
1003 int capping_symbol_cnt
;
1004 CORE_ADDR capping_text
;
1005 struct partial_symtab
**dependency_list
;
1006 int number_dependencies
;
1007 /* struct partial_symbol *capping_global, *capping_static;*/
1010 struct partial_symtab
*p1
;
1011 struct objfile
*objfile
= pst
-> objfile
;
1013 if (capping_symbol_cnt
!= -1)
1014 LDSYMCNT(pst
) = capping_symbol_cnt
- LDSYMCNT(pst
);
1016 /* Under Solaris, the N_SO symbols always have a value of 0,
1017 instead of the usual address of the .o file. Therefore,
1018 we have to do some tricks to fill in texthigh and textlow.
1019 The first trick is in partial-stab.h: if we see a static
1020 or global function, and the textlow for the current pst
1021 is still 0, then we use that function's address for
1022 the textlow of the pst.
1024 Now, to fill in texthigh, we remember the last function seen
1025 in the .o file (also in partial-stab.h). Also, there's a hack in
1026 bfd/elf.c and gdb/elfread.c to pass the ELF st_size field
1027 to here via the misc_info field. Therefore, we can fill in
1028 a reliable texthigh by taking the address plus size of the
1029 last function in the file.
1031 Unfortunately, that does not cover the case where the last function
1032 in the file is static. See the paragraph below for more comments
1035 Finally, if we have a valid textlow for the current file, we run
1036 down the partial_symtab_list filling in previous texthighs that
1037 are still unknown. */
1039 if (pst
->texthigh
== 0 && last_function_name
) {
1042 struct minimal_symbol
*minsym
;
1044 p
= strchr (last_function_name
, ':');
1046 p
= last_function_name
;
1047 n
= p
- last_function_name
;
1049 strncpy (p
, last_function_name
, n
);
1052 minsym
= lookup_minimal_symbol (p
, objfile
);
1055 pst
->texthigh
= SYMBOL_VALUE_ADDRESS(minsym
)+(long)MSYMBOL_INFO(minsym
);
1057 /* This file ends with a static function, and it's
1058 difficult to imagine how hard it would be to track down
1059 the elf symbol. Luckily, most of the time no one will notice,
1060 since the next file will likely be compiled with -g, so
1061 the code below will copy the first fuction's start address
1062 back to our texthigh variable. (Also, if this file is the
1063 last one in a dynamically linked program, texthigh already
1064 has the right value.) If the next file isn't compiled
1065 with -g, then the last function in this file winds up owning
1066 all of the text space up to the next -g file, or the end (minus
1067 shared libraries). This only matters for single stepping,
1068 and even then it will still work, except that it will single
1069 step through all of the covered functions, instead of setting
1070 breakpoints around them as it usualy does. This makes it
1071 pretty slow, but at least it doesn't fail.
1073 We can fix this with a fairly big change to bfd, but we need
1074 to coordinate better with Cygnus if we want to do that. FIXME. */
1076 last_function_name
= NULL
;
1079 /* this test will be true if the last .o file is only data */
1080 if (pst
->textlow
== 0)
1081 pst
->textlow
= pst
->texthigh
;
1083 /* If we know our own starting text address, then walk through all other
1084 psymtabs for this objfile, and if any didn't know their ending text
1085 address, set it to our starting address. Take care to not set our
1086 own ending address to our starting address, nor to set addresses on
1087 `dependency' files that have both textlow and texthigh zero. */
1089 ALL_OBJFILE_PSYMTABS (objfile
, p1
) {
1090 if (p1
->texthigh
== 0 && p1
->textlow
!= 0 && p1
!= pst
) {
1091 p1
->texthigh
= pst
->textlow
;
1092 /* if this file has only data, then make textlow match texthigh */
1093 if (p1
->textlow
== 0)
1094 p1
->textlow
= p1
->texthigh
;
1099 /* End of kludge for patching Solaris textlow and texthigh. */
1101 pst
->n_global_syms
=
1102 objfile
->global_psymbols
.next
- (objfile
->global_psymbols
.list
+ pst
->globals_offset
);
1103 pst
->n_static_syms
=
1104 objfile
->static_psymbols
.next
- (objfile
->static_psymbols
.list
+ pst
->statics_offset
);
1106 pst
->number_of_dependencies
= number_dependencies
;
1107 if (number_dependencies
)
1109 pst
->dependencies
= (struct partial_symtab
**)
1110 obstack_alloc (&objfile
->psymbol_obstack
,
1111 number_dependencies
* sizeof (struct partial_symtab
*));
1112 memcpy (pst
->dependencies
, dependency_list
,
1113 number_dependencies
* sizeof (struct partial_symtab
*));
1116 pst
->dependencies
= 0;
1118 for (i
= 0; i
< num_includes
; i
++)
1120 struct partial_symtab
*subpst
=
1121 allocate_psymtab (include_list
[i
], objfile
);
1123 subpst
->section_offsets
= pst
->section_offsets
;
1124 subpst
->read_symtab_private
=
1125 (char *) obstack_alloc (&objfile
->psymbol_obstack
,
1126 sizeof (struct symloc
));
1130 subpst
->texthigh
= 0;
1132 /* We could save slight bits of space by only making one of these,
1133 shared by the entire set of include files. FIXME-someday. */
1134 subpst
->dependencies
= (struct partial_symtab
**)
1135 obstack_alloc (&objfile
->psymbol_obstack
,
1136 sizeof (struct partial_symtab
*));
1137 subpst
->dependencies
[0] = pst
;
1138 subpst
->number_of_dependencies
= 1;
1140 subpst
->globals_offset
=
1141 subpst
->n_global_syms
=
1142 subpst
->statics_offset
=
1143 subpst
->n_static_syms
= 0;
1147 subpst
->read_symtab
= pst
->read_symtab
;
1150 sort_pst_symbols (pst
);
1152 /* If there is already a psymtab or symtab for a file of this name,
1154 (If there is a symtab, more drastic things also happen.)
1155 This happens in VxWorks. */
1156 free_named_symtabs (pst
->filename
);
1158 if (num_includes
== 0
1159 && number_dependencies
== 0
1160 && pst
->n_global_syms
== 0
1161 && pst
->n_static_syms
== 0) {
1162 /* Throw away this psymtab, it's empty. We can't deallocate it, since
1163 it is on the obstack, but we can forget to chain it on the list. */
1164 struct partial_symtab
*prev_pst
;
1166 /* First, snip it out of the psymtab chain */
1168 if (pst
->objfile
->psymtabs
== pst
)
1169 pst
->objfile
->psymtabs
= pst
->next
;
1171 for (prev_pst
= pst
->objfile
->psymtabs
; prev_pst
; prev_pst
= pst
->next
)
1172 if (prev_pst
->next
== pst
)
1173 prev_pst
->next
= pst
->next
;
1175 /* Next, put it on a free list for recycling */
1176 pst
->next
= pst
->objfile
->free_psymtabs
;
1177 pst
->objfile
->free_psymtabs
= pst
;
1179 /* Indicate that psymtab was thrown away. */
1180 pst
= (struct partial_symtab
*)NULL
;
1186 os9k_psymtab_to_symtab_1 (pst
)
1187 struct partial_symtab
*pst
;
1189 struct cleanup
*old_chain
;
1197 fprintf_unfiltered (gdb_stderr
, "Psymtab for %s already read in. Shouldn't happen.\n",
1202 /* Read in all partial symtabs on which this one is dependent */
1203 for (i
= 0; i
< pst
->number_of_dependencies
; i
++)
1204 if (!pst
->dependencies
[i
]->readin
)
1206 /* Inform about additional files that need to be read in. */
1209 fputs_filtered (" ", gdb_stdout
);
1211 fputs_filtered ("and ", gdb_stdout
);
1213 printf_filtered ("%s...", pst
->dependencies
[i
]->filename
);
1214 wrap_here (""); /* Flush output */
1215 gdb_flush (gdb_stdout
);
1217 os9k_psymtab_to_symtab_1 (pst
->dependencies
[i
]);
1220 if (LDSYMCNT(pst
)) /* Otherwise it's a dummy */
1222 /* Init stuff necessary for reading in symbols */
1225 old_chain
= make_cleanup (really_free_pendings
, 0);
1227 /* Read in this file's symbols */
1228 os9k_read_ofile_symtab (pst
);
1229 sort_symtab_syms (pst
->symtab
);
1230 do_cleanups (old_chain
);
1236 /* Read in all of the symbols for a given psymtab for real.
1237 Be verbose about it if the user wants that. */
1240 os9k_psymtab_to_symtab (pst
)
1241 struct partial_symtab
*pst
;
1250 fprintf_unfiltered (gdb_stderr
, "Psymtab for %s already read in. Shouldn't happen.\n",
1255 if (LDSYMCNT(pst
) || pst
->number_of_dependencies
)
1257 /* Print the message now, before reading the string table,
1258 to avoid disconcerting pauses. */
1261 printf_filtered ("Reading in symbols for %s...", pst
->filename
);
1262 gdb_flush (gdb_stdout
);
1265 sym_bfd
= pst
->objfile
->obfd
;
1266 os9k_psymtab_to_symtab_1 (pst
);
1268 /* Match with global symbols. This only needs to be done once,
1269 after all of the symtabs and dependencies have been read in. */
1270 scan_file_globals (pst
->objfile
);
1272 /* Finish up the debug error message. */
1274 printf_filtered ("done.\n");
1278 /* Read in a defined section of a specific object file's symbols. */
1280 os9k_read_ofile_symtab (pst
)
1281 struct partial_symtab
*pst
;
1283 register struct internal_symstruct
*bufp
;
1285 unsigned max_symnum
;
1287 struct objfile
*objfile
;
1288 int sym_offset
; /* Offset to start of symbols to read */
1289 CORE_ADDR text_offset
; /* Start of text segment for symbols */
1290 int text_size
; /* Size of text segment for symbols */
1291 struct section_offsets
*section_offsets
;
1294 objfile
= pst
->objfile
;
1295 sym_offset
= LDSYMOFF(pst
);
1296 max_symnum
= LDSYMCNT(pst
);
1297 text_offset
= pst
->textlow
;
1298 text_size
= pst
->texthigh
- pst
->textlow
;
1299 section_offsets
= pst
->section_offsets
;
1301 current_objfile
= objfile
;
1302 subfile_stack
= NULL
;
1303 last_source_file
= NULL
;
1305 abfd
= objfile
->obfd
;
1306 dbg_file
= objfile
->auxf2
;
1309 /* It is necessary to actually read one symbol *before* the start
1310 of this symtab's symbols, because the GCC_COMPILED_FLAG_SYMBOL
1311 occurs before the N_SO symbol.
1312 Detecting this in read_dbx_symtab
1313 would slow down initial readin, so we look for it here instead. */
1314 if (!processing_acc_compilation
&& sym_offset
>= (int)symbol_size
)
1316 fseek (objefile
->auxf2
, sym_offset
, SEEK_CUR
);
1317 fill_sym(objfile
->auxf2
, abfd
);
1320 processing_gcc_compilation
= 0;
1321 if (bufp
->n_type
== N_TEXT
)
1323 if (STREQ (namestring
, GCC_COMPILED_FLAG_SYMBOL
))
1324 processing_gcc_compilation
= 1;
1325 else if (STREQ (namestring
, GCC2_COMPILED_FLAG_SYMBOL
))
1326 processing_gcc_compilation
= 2;
1329 /* Try to select a C++ demangling based on the compilation unit
1332 if (processing_gcc_compilation
)
1334 if (AUTO_DEMANGLING
)
1336 set_demangling_style (GNU_DEMANGLING_STYLE_STRING
);
1342 /* The N_SO starting this symtab is the first symbol, so we
1343 better not check the symbol before it. I'm not this can
1344 happen, but it doesn't hurt to check for it. */
1345 bfd_seek (symfile_bfd
, sym_offset
, SEEK_CUR
);
1346 processing_gcc_compilation
= 0;
1350 fseek(dbg_file
, (long)sym_offset
, 0);
1352 if (bufp->n_type != (unsigned char)N_SYM_SYM)
1353 error("First symbol in segment of executable not a source symbol");
1356 for (symnum
= 0; symnum
< max_symnum
; symnum
++)
1358 QUIT
; /* Allow this to be interruptable */
1359 fill_sym(dbg_file
, abfd
);
1361 type
= bufp
->n_type
;
1363 os9k_process_one_symbol (type
, bufp
->n_desc
, bufp
->n_value
,
1364 bufp
->n_strx
, section_offsets
, objfile
);
1366 /* We skip checking for a new .o or -l file; that should never
1367 happen in this routine. */
1369 else if (type
== N_TEXT
)
1371 /* I don't think this code will ever be executed, because
1372 the GCC_COMPILED_FLAG_SYMBOL usually is right before
1373 the N_SO symbol which starts this source file.
1374 However, there is no reason not to accept
1375 the GCC_COMPILED_FLAG_SYMBOL anywhere. */
1377 if (STREQ (namestring
, GCC_COMPILED_FLAG_SYMBOL
))
1378 processing_gcc_compilation
= 1;
1379 else if (STREQ (namestring
, GCC2_COMPILED_FLAG_SYMBOL
))
1380 processing_gcc_compilation
= 2;
1382 if (AUTO_DEMANGLING
)
1384 set_demangling_style (GNU_DEMANGLING_STYLE_STRING
);
1387 else if (type
& N_EXT
|| type
== (unsigned char)N_TEXT
1388 || type
== (unsigned char)N_NBTEXT
1390 /* Global symbol: see if we came across a dbx defintion for
1391 a corresponding symbol. If so, store the value. Remove
1392 syms from the chain when their values are stored, but
1393 search the whole chain, as there may be several syms from
1394 different files with the same name. */
1395 /* This is probably not true. Since the files will be read
1396 in one at a time, each reference to a global symbol will
1397 be satisfied in each file as it appears. So we skip this
1404 current_objfile
= NULL
;
1406 /* In a Solaris elf file, this variable, which comes from the
1407 value of the N_SO symbol, will still be 0. Luckily, text_offset,
1408 which comes from pst->textlow is correct. */
1409 if (last_source_start_addr
== 0)
1410 last_source_start_addr
= text_offset
;
1411 pst
->symtab
= end_symtab (text_offset
+ text_size
, 0, 0, objfile
,
1417 /* This handles a single symbol from the symbol-file, building symbols
1418 into a GDB symtab. It takes these arguments and an implicit argument.
1420 TYPE is the type field of the ".stab" symbol entry.
1421 DESC is the desc field of the ".stab" entry.
1422 VALU is the value field of the ".stab" entry.
1423 NAME is the symbol name, in our address space.
1424 SECTION_OFFSETS is a set of amounts by which the sections of this object
1425 file were relocated when it was loaded into memory.
1426 All symbols that refer
1427 to memory locations need to be offset by these amounts.
1428 OBJFILE is the object file from which we are reading symbols.
1429 It is used in end_symtab. */
1432 os9k_process_one_symbol (type
, desc
, valu
, name
, section_offsets
, objfile
)
1436 struct section_offsets
*section_offsets
;
1437 struct objfile
*objfile
;
1439 register struct context_stack
*new;
1440 /* The stab type used for the definition of the last function.
1441 N_STSYM or N_GSYM for SunOS4 acc; N_FUN for other compilers. */
1442 static int function_stab_type
= 0;
1445 /* Something is wrong if we see real data before
1446 seeing a source file name. */
1447 if (last_source_file
== NULL
&& type
!= (unsigned char)N_SO
)
1449 /* Ignore any symbols which appear before an N_SO symbol. Currently
1450 no one puts symbols there, but we should deal gracefully with the
1451 case. A complain()t might be in order (if !IGNORE_SYMBOL (type)),
1452 but this should not be an error (). */
1460 /* On most machines, the block addresses are relative to the
1461 N_SO, the linker did not relocate them (sigh). */
1462 valu
+= last_source_start_addr
;
1463 new = push_context (desc
, valu
);
1467 valu
+= last_source_start_addr
;
1468 new = pop_context();
1470 #if !defined (OS9K_VARIABLES_INSIDE_BLOCK)
1471 #define OS9K_VARIABLES_INSIDE_BLOCK(desc, gcc_p) 1
1474 if (!OS9K_VARIABLES_INSIDE_BLOCK(desc
, processing_gcc_compilation
))
1475 local_symbols
= new->locals
;
1477 if (context_stack_depth
> 1)
1479 /* This is not the outermost LBRAC...RBRAC pair in the function,
1480 its local symbols preceded it, and are the ones just recovered
1481 from the context stack. Define the block for them (but don't
1482 bother if the block contains no symbols. Should we complain
1483 on blocks without symbols? I can't think of any useful purpose
1485 if (local_symbols
!= NULL
)
1487 /* Muzzle a compiler bug that makes end < start. (which
1488 compilers? Is this ever harmful?). */
1489 if (new->start_addr
> valu
)
1491 complain (&lbrac_rbrac_complaint
);
1492 new->start_addr
= valu
;
1494 /* Make a block for the local symbols within. */
1495 finish_block (0, &local_symbols
, new->old_blocks
,
1496 new->start_addr
, valu
, objfile
);
1501 if (context_stack_depth
== 0)
1503 within_function
= 0;
1504 /* Make a block for the local symbols within. */
1505 finish_block (new->name
, &local_symbols
, new->old_blocks
,
1506 new->start_addr
, valu
, objfile
);
1510 /* attach local_symbols to the end of new->locals */
1511 if (!new->locals
) new->locals
= local_symbols
;
1516 while (p
->next
) p
= p
->next
;
1517 p
->next
= local_symbols
;
1522 if (OS9K_VARIABLES_INSIDE_BLOCK(desc
, processing_gcc_compilation
))
1523 /* Now pop locals of block just finished. */
1524 local_symbols
= new->locals
;
1529 /* This type of "symbol" really just records
1530 one line-number -- core-address correspondence.
1531 Enter it in the line list for this symbol table. */
1532 /* Relocate for dynamic loading and for ELF acc fn-relative syms. */
1533 valu
+= last_source_start_addr
;
1534 record_line (current_subfile
, (int)name
, valu
);
1537 /* The following symbol types need to have the appropriate offset added
1538 to their value; then we process symbol definitions in the name. */
1545 char *p
= strchr (name
, ':');
1555 valu
+= ANOFFSET (section_offsets
, SECT_OFF_TEXT
);
1556 n
= strrchr(name
, '/');
1566 if (symfile_depth
++ == 0) {
1567 if (last_source_file
) {
1568 end_symtab (valu
, 0, 0, objfile
, SECT_OFF_TEXT
);
1573 start_symtab (n
, dirn
, valu
);
1576 start_subfile (n
, dirn
!=NULL
? dirn
: current_subfile
->dirname
);
1582 valu
+= ANOFFSET (section_offsets
, SECT_OFF_TEXT
);
1583 function_stab_type
= type
;
1585 within_function
= 1;
1586 new = push_context (0, valu
);
1587 new->name
= define_symbol (valu
, name
, desc
, type
, objfile
);
1592 valu
+= ANOFFSET (section_offsets
, SECT_OFF_DATA
);
1593 define_symbol (valu
, name
, desc
, type
, objfile
);
1597 define_symbol (valu
, name
, desc
, type
, objfile
);
1604 if (--symfile_depth
!= 0)
1605 start_subfile(pop_subfile(), current_subfile
->dirname
);
1609 complain (&unknown_symtype_complaint
,
1610 local_hex_string((unsigned long) type
));
1617 previous_stab_code
= type
;
1620 /* Parse the user's idea of an offset for dynamic linking, into our idea
1621 of how to represent it for fast symbol reading. */
1623 static struct section_offsets
*
1624 os9k_symfile_offsets (objfile
, addr
)
1625 struct objfile
*objfile
;
1628 struct section_offsets
*section_offsets
;
1631 objfile
->num_sections
= SECT_OFF_MAX
;
1632 section_offsets
= (struct section_offsets
*)
1633 obstack_alloc (&objfile
-> psymbol_obstack
,
1634 sizeof (struct section_offsets
)
1635 + sizeof (section_offsets
->offsets
) * (SECT_OFF_MAX
-1));
1637 for (i
= 0; i
< SECT_OFF_MAX
; i
++)
1638 ANOFFSET (section_offsets
, i
) = addr
;
1640 return section_offsets
;
1643 static struct sym_fns os9k_sym_fns
=
1645 bfd_target_os9k_flavour
,
1646 os9k_new_init
, /* sym_new_init: init anything gbl to entire symtab */
1647 os9k_symfile_init
, /* sym_init: read initial info, setup for sym_read() */
1648 os9k_symfile_read
, /* sym_read: read a symbol file into symtab */
1649 os9k_symfile_finish
, /* sym_finish: finished with file, cleanup */
1650 os9k_symfile_offsets
, /* sym_offsets: parse user's offsets to internal form*/
1651 NULL
/* next: pointer to next struct sym_fns */
1655 _initialize_os9kread ()
1657 add_symtab_fns(&os9k_sym_fns
);