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"
67 #if !defined (SEEK_SET)
72 /* Each partial symbol table entry contains a pointer to private data for the
73 read_symtab() function to use when expanding a partial symbol table entry
74 to a full symbol table entry.
76 For dbxread this structure contains the offset within the file symbol table
77 of first local symbol for this file, and count of the section
78 of the symbol table devoted to this file's symbols (actually, the section
79 bracketed may contain more than just this file's symbols). It also contains
80 further information needed to locate the symbols if they are in an ELF file.
82 If ldsymcnt is 0, the only reason for this thing's existence is the
83 dependency list. Nothing else will happen when it is read in. */
85 #define LDSYMOFF(p) (((struct symloc *)((p)->read_symtab_private))->ldsymoff)
86 #define LDSYMCNT(p) (((struct symloc *)((p)->read_symtab_private))->ldsymnum)
93 /* Remember what we deduced to be the source language of this psymtab. */
94 static enum language psymtab_language
= language_unknown
;
96 /* keep partial symbol table file nested depth */
97 static int psymfile_depth
= 0;
99 /* keep symbol table file nested depth */
100 static int symfile_depth
= 0;
102 /* Nonzero means give verbose info on gdb action. From main.c. */
103 extern int info_verbose
;
105 extern int previous_stab_code
;
107 /* The BFD for this file -- implicit parameter to next_symbol_text. */
108 static bfd
*symfile_bfd
;
110 /* Name of last function encountered. Used in Solaris to approximate
111 object file boundaries. */
112 static char *last_function_name
;
114 /* Complaints about the symbols we have encountered. */
115 extern struct complaint lbrac_complaint
;
117 extern struct complaint unknown_symtype_complaint
;
119 extern struct complaint unknown_symchar_complaint
;
121 extern struct complaint lbrac_rbrac_complaint
;
123 extern struct complaint repeated_header_complaint
;
125 extern struct complaint repeated_header_name_complaint
;
127 static struct complaint lbrac_unmatched_complaint
=
128 {"unmatched Increment Block Entry before symtab pos %d", 0, 0};
130 static struct complaint lbrac_mismatch_complaint
=
131 {"IBE/IDE symbol mismatch at symtab pos %d", 0, 0};
133 extern struct symbol
*
134 os9k_define_symbol
PARAMS ((CORE_ADDR
, char *, int, int, struct objfile
*));
137 /* Local function prototypes */
139 os9k_read_ofile_symtab
PARAMS ((struct partial_symtab
*));
142 os9k_psymtab_to_symtab
PARAMS ((struct partial_symtab
*));
145 os9k_psymtab_to_symtab_1
PARAMS ((struct partial_symtab
*));
148 read_os9k_psymtab
PARAMS ((struct section_offsets
*, struct objfile
*,
152 init_psymbol_list
PARAMS ((struct objfile
*));
155 os9k_next_symbol_text
PARAMS ((void));
158 fill_sym
PARAMS ((FILE *, bfd
*));
161 os9k_symfile_init
PARAMS ((struct objfile
*));
164 os9k_new_init
PARAMS ((struct objfile
*));
167 os9k_symfile_read
PARAMS ((struct objfile
*, struct section_offsets
*, int));
170 os9k_symfile_finish
PARAMS ((struct objfile
*));
173 os9k_process_one_symbol
PARAMS ((int, int, CORE_ADDR
, char *,
174 struct section_offsets
*, struct objfile
*));
176 static struct partial_symtab
*
177 os9k_start_psymtab
PARAMS ((struct objfile
*, struct section_offsets
*, char *,
178 CORE_ADDR
, int, int, struct partial_symbol
*,
179 struct partial_symbol
*));
181 static struct partial_symtab
*
182 os9k_end_psymtab
PARAMS ((struct partial_symtab
*, char **, int, int, CORE_ADDR
,
183 struct partial_symtab
**, int));
186 record_minimal_symbol
PARAMS ((char *, CORE_ADDR
, int, struct objfile
*));
188 #define HANDLE_RBRAC(val) \
189 if ((val) > pst->texthigh) pst->texthigh = (val);
191 #define SWAP_STBHDR(hdrp, abfd) \
193 (hdrp)->fmtno = bfd_get_16(abfd, (unsigned char *)&(hdrp)->fmtno); \
194 (hdrp)->crc = bfd_get_32(abfd, (unsigned char *)&(hdrp)->crc); \
195 (hdrp)->offset = bfd_get_32(abfd, (unsigned char *)&(hdrp)->offset); \
196 (hdrp)->nsym = bfd_get_32(abfd, (unsigned char *)&(hdrp)->nsym); \
198 #define SWAP_STBSYM(symp, abfd) \
200 (symp)->value = bfd_get_32(abfd, (unsigned char *)&(symp)->value); \
201 (symp)->type = bfd_get_16(abfd, (unsigned char *)&(symp)->type); \
202 (symp)->stroff = bfd_get_32(abfd, (unsigned char *)&(symp)->stroff); \
212 record_minimal_symbol (name
, address
, type
, objfile
)
216 struct objfile
*objfile
;
218 enum minimal_symbol_type ms_type
;
222 case N_TEXT
: ms_type
= mst_text
; break;
223 case N_DATA
: ms_type
= mst_data
; break;
224 case N_BSS
: ms_type
= mst_bss
; break;
225 case N_RDATA
: ms_type
= mst_bss
; break;
226 case N_IDATA
: ms_type
= mst_data
; break;
227 case N_ABS
: ms_type
= mst_abs
; break;
228 default: ms_type
= mst_unknown
; break;
231 prim_record_minimal_symbol
232 (obsavestring (name
, strlen(name
), &objfile
->symbol_obstack
),
233 address
, ms_type
, objfile
);
236 /* read and process .stb file and store in minimal symbol table */
237 typedef char mhhdr
[80];
252 #define STBSYMSIZE 10
255 read_minimal_symbols(objfile
)
256 struct objfile
*objfile
;
261 struct stbsymbol sym
;
263 char buf
[64], buf1
[128];
266 if (fp
== NULL
) return;
267 abfd
= objfile
->obfd
;
268 fread(&hdr
.comhdr
[0], sizeof(mhhdr
), 1, fp
);
279 fread(&hdr
.fmtno
, sizeof(hdr
.fmtno
), 1, fp
);
280 fread(&hdr
.crc
, sizeof(hdr
.crc
), 1, fp
);
281 fread(&hdr
.offset
, sizeof(hdr
.offset
), 1, fp
);
282 fread(&hdr
.nsym
, sizeof(hdr
.nsym
), 1, fp
);
283 SWAP_STBHDR(&hdr
, abfd
);
286 init_minimal_symbol_collection();
288 for (i
= hdr
.nsym
; i
> 0; i
--) {
289 fseek(fp
, (long)off
, 0);
290 fread(&sym
.value
, sizeof(sym
.value
), 1, fp
);
291 fread(&sym
.type
, sizeof(sym
.type
), 1, fp
);
292 fread(&sym
.stroff
, sizeof(sym
.stroff
), 1, fp
);
293 SWAP_STBSYM (&sym
, abfd
);
294 fseek(fp
, (long)sym
.stroff
, 0);
303 record_minimal_symbol(buf1
, sym
.value
, sym
.type
&7, objfile
);
306 install_minimal_symbols (objfile
);
310 /* Scan and build partial symbols for a symbol file.
311 We have been initialized by a call to os9k_symfile_init, which
312 put all the relevant info into a "struct os9k_symfile_info",
313 hung off the objfile structure.
315 SECTION_OFFSETS contains offsets relative to which the symbols in the
316 various sections are (depending where the sections were actually loaded).
317 MAINLINE is true if we are reading the main symbol
318 table (as opposed to a shared lib or dynamically loaded file). */
321 os9k_symfile_read (objfile
, section_offsets
, mainline
)
322 struct objfile
*objfile
;
323 struct section_offsets
*section_offsets
;
324 int mainline
; /* FIXME comments above */
329 struct cleanup
*back_to
;
331 sym_bfd
= objfile
->obfd
;
332 /* If we are reinitializing, or if we have never loaded syms yet, init */
333 if (mainline
|| objfile
->global_psymbols
.size
== 0 ||
334 objfile
->static_psymbols
.size
== 0)
335 init_psymbol_list (objfile
);
338 back_to
= make_cleanup (really_free_pendings
, 0);
340 make_cleanup (discard_minimal_symbols
, 0);
341 read_minimal_symbols (objfile
);
343 /* Now that the symbol table data of the executable file are all in core,
344 process them and define symbols accordingly. */
345 read_os9k_psymtab (section_offsets
, objfile
,
346 bfd_section_vma (sym_bfd
, DBX_TEXT_SECT (objfile
)),
347 bfd_section_size (sym_bfd
, DBX_TEXT_SECT (objfile
)));
349 if (!have_partial_symbols ()) {
351 printf_filtered ("(no debugging symbols found)...");
355 do_cleanups (back_to
);
358 /* Initialize anything that needs initializing when a completely new
359 symbol file is specified (not just adding some symbols from another
360 file, e.g. a shared library). */
363 os9k_new_init (ignore
)
364 struct objfile
*ignore
;
366 stabsread_new_init ();
367 buildsym_new_init ();
370 init_header_files ();
374 /* os9k_symfile_init ()
375 It is passed a struct objfile which contains, among other things,
376 the BFD for the file whose symbols are being read, and a slot for a pointer
377 to "private data" which we fill with goodies.
379 Since BFD doesn't know how to read debug symbols in a format-independent
380 way (and may never do so...), we have to do it ourselves. We will never
381 be called unless this is an a.out (or very similar) file.
382 FIXME, there should be a cleaner peephole into the BFD environment here. */
385 os9k_symfile_init (objfile
)
386 struct objfile
*objfile
;
389 bfd
*sym_bfd
= objfile
->obfd
;
390 char *name
= bfd_get_filename (sym_bfd
);
391 char dbgname
[64], stbname
[64];
396 strcpy(dbgname
, name
);
397 strcat(dbgname
, ".dbg");
398 strcpy(stbname
, name
);
399 strcat(stbname
, ".stb");
401 if ((symfile
= fopen(dbgname
, "r")) == NULL
) {
402 warning("Symbol file %s not found", dbgname
);
404 objfile
->auxf2
= symfile
;
406 if ((minfile
= fopen(stbname
, "r")) == NULL
) {
407 warning("Symbol file %s not found", stbname
);
409 objfile
->auxf1
= minfile
;
411 /* Allocate struct to keep track of the symfile */
412 objfile
->sym_stab_info
= (PTR
)
413 xmmalloc (objfile
-> md
, sizeof (struct dbx_symfile_info
));
414 DBX_SYMFILE_INFO (objfile
)->stab_section_info
= NULL
;
416 DBX_TEXT_SECT (objfile
) = bfd_get_section_by_name (sym_bfd
, ".text");
417 if (!DBX_TEXT_SECT (objfile
))
418 error ("Can't find .text section in file");
420 DBX_SYMBOL_SIZE (objfile
) = 0; /* variable size symbol */
421 DBX_SYMCOUNT (objfile
) = 0; /* used to be bfd_get_symcount(sym_bfd) */
422 DBX_SYMTAB_OFFSET (objfile
) = 0; /* used to be SYMBOL_TABLE_OFFSET */
425 /* Perform any local cleanups required when we are done with a particular
426 objfile. I.E, we are in the process of discarding all symbol information
427 for an objfile, freeing up all memory held for it, and unlinking the
428 objfile struct from the global list of known objfiles. */
431 os9k_symfile_finish (objfile
)
432 struct objfile
*objfile
;
434 if (objfile
->sym_stab_info
!= NULL
)
436 mfree (objfile
-> md
, objfile
->sym_stab_info
);
439 free_header_files ();
452 #define SWAP_DBGHDR(hdrp, abfd) \
454 (hdrp)->sync = bfd_get_32(abfd, (unsigned char *)&(hdrp)->sync); \
455 (hdrp)->rev = bfd_get_16(abfd, (unsigned char *)&(hdrp)->rev); \
456 (hdrp)->crc = bfd_get_32(abfd, (unsigned char *)&(hdrp)->crc); \
457 (hdrp)->os = bfd_get_16(abfd, (unsigned char *)&(hdrp)->os); \
458 (hdrp)->cpu = bfd_get_16(abfd, (unsigned char *)&(hdrp)->cpu); \
461 #define N_SYM_CMPLR 0
462 #define N_SYM_SLINE 1
464 #define N_SYM_LBRAC 3
465 #define N_SYM_RBRAC 4
468 struct internal_symstruct
{
474 static struct internal_symstruct symbol
;
475 static struct internal_symstruct
*symbuf
= &symbol
;
476 static char strbuf
[256];
479 fill_sym (dbg_file
, abfd
)
488 int nbytes
= fread(&si
, sizeof(si
), 1, dbg_file
);
492 perror_with_name ("reading .dbg file.");
495 symbuf
->n_strx
= NULL
;
496 symbuf
->n_type
= bfd_get_16 (abfd
, (unsigned char *)&si
);
497 symbuf
->n_type
= 0xf & symbuf
->n_type
;
498 switch (symbuf
->n_type
)
501 fread(&si
, sizeof(si
), 1, dbg_file
);
502 symbuf
->n_desc
= bfd_get_16(abfd
, (unsigned char *)&si
);
505 fread(&li
, sizeof(li
), 1, dbg_file
);
506 symbuf
->n_value
= bfd_get_32(abfd
, (unsigned char *)&li
);
507 fread(&li
, sizeof(li
), 1, dbg_file
);
508 li
= bfd_get_32(abfd
, (unsigned char *)&li
);
509 symbuf
->n_strx
= (char *)(li
>> 12);
510 symbuf
->n_desc
= li
& 0xfff;
513 fread(&li
, sizeof(li
), 1, dbg_file
);
514 symbuf
->n_value
= bfd_get_32(abfd
, (unsigned char *)&li
);
518 strbuf
[si
++] = (char) ii
;
519 } while (ii
!= 0 || si
% 2 != 0);
520 symbuf
->n_strx
= strbuf
;
523 fread(&li
, sizeof(li
), 1, dbg_file
);
524 symbuf
->n_value
= bfd_get_32(abfd
, (unsigned char *)&li
);
527 fread(&li
, sizeof(li
), 1, dbg_file
);
528 symbuf
->n_value
= bfd_get_32(abfd
, (unsigned char *)&li
);
536 /* Initializes storage for all of the partial symbols that will be
537 created by read_dbx_symtab and subsidiaries. */
540 init_psymbol_list (objfile
)
541 struct objfile
*objfile
;
543 /* Free any previously allocated psymbol lists. */
544 if (objfile
-> global_psymbols
.list
)
545 mfree (objfile
-> md
, (PTR
)objfile
-> global_psymbols
.list
);
546 if (objfile
-> static_psymbols
.list
)
547 mfree (objfile
-> md
, (PTR
)objfile
-> static_psymbols
.list
);
549 /* Current best guess is that there are approximately a twentieth
550 of the total symbols (in a debugging file) are global or static
552 objfile
-> global_psymbols
.size
= DBX_SYMCOUNT (objfile
) / 10;
553 objfile
-> static_psymbols
.size
= DBX_SYMCOUNT (objfile
) / 10;
554 objfile
-> global_psymbols
.next
= objfile
-> global_psymbols
.list
= (struct partial_symbol
*)
555 xmmalloc (objfile
-> md
, objfile
-> global_psymbols
.size
* sizeof (struct partial_symbol
));
556 objfile
-> static_psymbols
.next
= objfile
-> static_psymbols
.list
= (struct partial_symbol
*)
557 xmmalloc (objfile
-> md
, objfile
-> static_psymbols
.size
* sizeof (struct partial_symbol
));
560 /* Given pointers to an a.out symbol table in core containing dbx
561 style data, setup partial_symtab's describing each source file for
562 which debugging information is available.
563 SYMFILE_NAME is the name of the file we are reading from
564 and SECTION_OFFSETS is the set of offsets for the various sections
565 of the file (a set of zeros if the mainline program). */
568 read_os9k_psymtab (section_offsets
, objfile
, text_addr
, text_size
)
569 struct section_offsets
*section_offsets
;
570 struct objfile
*objfile
;
574 register struct internal_symstruct
*bufp
= 0; /* =0 avoids gcc -Wall glitch*/
575 register char *namestring
;
577 int past_first_source_file
= 0;
578 CORE_ADDR last_o_file_start
= 0;
579 struct cleanup
*back_to
;
584 /* End of the text segment of the executable file. */
585 static CORE_ADDR end_of_text_addr
;
587 /* Current partial symtab */
588 static struct partial_symtab
*pst
= 0;
590 /* List of current psymtab's include files */
591 char **psymtab_include_list
;
592 int includes_allocated
;
595 /* Index within current psymtab dependency list */
596 struct partial_symtab
**dependency_list
;
597 int dependencies_used
, dependencies_allocated
;
599 includes_allocated
= 30;
601 psymtab_include_list
= (char **) alloca (includes_allocated
*
604 dependencies_allocated
= 30;
605 dependencies_used
= 0;
607 (struct partial_symtab
**) alloca (dependencies_allocated
*
608 sizeof (struct partial_symtab
*));
610 last_source_file
= NULL
;
612 #ifdef END_OF_TEXT_DEFAULT
613 end_of_text_addr
= END_OF_TEXT_DEFAULT
;
615 end_of_text_addr
= text_addr
+ section_offsets
->offsets
[SECT_OFF_TEXT
]
616 + text_size
; /* Relocate */
619 abfd
= objfile
->obfd
;
622 fread(&hdr
.sync
, sizeof(hdr
.sync
), 1, fp
);
623 fread(&hdr
.rev
, sizeof(hdr
.rev
), 1, fp
);
624 fread(&hdr
.crc
, sizeof(hdr
.crc
), 1, fp
);
625 fread(&hdr
.os
, sizeof(hdr
.os
), 1, fp
);
626 fread(&hdr
.cpu
, sizeof(hdr
.cpu
), 1, fp
);
627 SWAP_DBGHDR(&hdr
, abfd
);
635 /* Get the symbol for this run and pull out some info */
636 QUIT
; /* allow this to be interruptable */
637 cursymoffset
= ftell(objfile
->auxf2
);
638 ret
= fill_sym(objfile
->auxf2
, abfd
);
643 /* Special case to speed up readin. */
644 if (bufp
->n_type
== (short)N_SYM_SLINE
) continue;
646 #define CUR_SYMBOL_VALUE bufp->n_value
649 switch (bufp
->n_type
)
657 CUR_SYMBOL_VALUE
+= ANOFFSET(section_offsets
, SECT_OFF_TEXT
);
658 if (psymfile_depth
== 1 && pst
)
660 os9k_end_psymtab (pst
, psymtab_include_list
, includes_used
,
661 symnum
, CUR_SYMBOL_VALUE
,
662 dependency_list
, dependencies_used
);
663 pst
= (struct partial_symtab
*) 0;
665 dependencies_used
= 0;
670 case N_SYM_SYM
: /* Typedef or automatic variable. */
671 namestring
= bufp
->n_strx
;
672 p
= (char *) strchr (namestring
, ':');
674 continue; /* Not a debugging symbol. */
676 /* Main processing section for debugging symbols which
677 the initial read through the symbol tables needs to worry
678 about. If we reach this point, the symbol which we are
679 considering is definitely one we are interested in.
680 p must also contain the (valid) index into the namestring
681 which indicates the debugging type symbol. */
688 enum language tmp_language
;
690 valu
= CUR_SYMBOL_VALUE
+
691 ANOFFSET (section_offsets
, SECT_OFF_TEXT
);
692 past_first_source_file
= 1;
694 if (psymfile_depth
== 0) {
696 pst
= os9k_start_psymtab (objfile
, section_offsets
,
700 objfile
-> global_psymbols
.next
,
701 objfile
-> static_psymbols
.next
);
702 } else { /* this is a include file */
703 tmp_language
= deduce_language_from_filename (namestring
);
704 if (tmp_language
!= language_unknown
705 && (tmp_language
!= language_c
706 || psymtab_language
!= language_cplus
))
707 psymtab_language
= tmp_language
;
710 if (pst && STREQ (namestring, pst->filename))
714 for (i = 0; i < includes_used; i++)
715 if (STREQ (namestring, psymtab_include_list[i]))
725 psymtab_include_list
[includes_used
++] = namestring
;
726 if (includes_used
>= includes_allocated
)
728 char **orig
= psymtab_include_list
;
730 psymtab_include_list
= (char **)
731 alloca ((includes_allocated
*= 2) * sizeof (char *));
732 memcpy ((PTR
)psymtab_include_list
, (PTR
)orig
,
733 includes_used
* sizeof (char *));
742 ADD_PSYMBOL_ADDR_TO_LIST (namestring
, p
- namestring
,
743 VAR_NAMESPACE
, LOC_STATIC
,
744 objfile
->static_psymbols
,
746 psymtab_language
, objfile
);
749 ADD_PSYMBOL_ADDR_TO_LIST (namestring
, p
- namestring
,
750 VAR_NAMESPACE
, LOC_STATIC
,
751 objfile
->global_psymbols
,
753 psymtab_language
, objfile
);
757 if (p
!= namestring
) /* a name is there, not just :T... */
759 ADD_PSYMBOL_TO_LIST (namestring
, p
- namestring
,
760 STRUCT_NAMESPACE
, LOC_TYPEDEF
,
761 objfile
->static_psymbols
,
763 psymtab_language
, objfile
);
766 /* Also a typedef with the same name. */
767 ADD_PSYMBOL_TO_LIST (namestring
, p
- namestring
,
768 VAR_NAMESPACE
, LOC_TYPEDEF
,
769 objfile
->static_psymbols
,
770 CUR_SYMBOL_VALUE
, psymtab_language
,
774 /* The semantics of C++ state that "struct foo { ... }"
775 also defines a typedef for "foo". Unfortuantely, cfront
776 never makes the typedef when translating from C++ to C.
777 We make the typedef here so that "ptype foo" works as
778 expected for cfront translated code. */
779 else if (psymtab_language
== language_cplus
)
781 /* Also a typedef with the same name. */
782 ADD_PSYMBOL_TO_LIST (namestring
, p
- namestring
,
783 VAR_NAMESPACE
, LOC_TYPEDEF
,
784 objfile
->static_psymbols
,
785 CUR_SYMBOL_VALUE
, psymtab_language
,
791 if (p
!= namestring
) /* a name is there, not just :T... */
793 ADD_PSYMBOL_TO_LIST (namestring
, p
- namestring
,
794 VAR_NAMESPACE
, LOC_TYPEDEF
,
795 objfile
->static_psymbols
,
797 psymtab_language
, objfile
);
800 /* If this is an enumerated type, we need to
801 add all the enum constants to the partial symbol
802 table. This does not cover enums without names, e.g.
803 "enum {a, b} c;" in C, but fortunately those are
804 rare. There is no way for GDB to find those from the
805 enum type without spending too much time on it. Thus
806 to solve this problem, the compiler needs to put out the
807 enum in a nameless type. GCC2 does this. */
809 /* We are looking for something of the form
810 <name> ":" ("t" | "T") [<number> "="] "e" <size>
811 {<constant> ":" <value> ","} ";". */
813 /* Skip over the colon and the 't' or 'T'. */
815 /* This type may be given a number. Also, numbers can come
816 in pairs like (0,26). Skip over it. */
817 while ((*p
>= '0' && *p
<= '9')
818 || *p
== '(' || *p
== ',' || *p
== ')'
824 /* We have found an enumerated type. skip size */
825 while (*p
>= '0' && *p
<= '9') p
++;
826 /* According to comments in read_enum_type
827 a comma could end it instead of a semicolon.
828 I don't know where that happens.
830 while (*p
&& *p
!= ';' && *p
!= ',')
834 /* Check for and handle cretinous dbx symbol name
837 p = next_symbol_text ();
840 /* Point to the character after the name
841 of the enum constant. */
842 for (q
= p
; *q
&& *q
!= ':'; q
++)
844 /* Note that the value doesn't matter for
845 enum constants in psymtabs, just in symtabs. */
846 ADD_PSYMBOL_TO_LIST (p
, q
- p
,
847 VAR_NAMESPACE
, LOC_CONST
,
848 objfile
->static_psymbols
, 0,
849 psymtab_language
, objfile
);
850 /* Point past the name. */
852 /* Skip over the value. */
853 while (*p
&& *p
!= ',')
855 /* Advance past the comma. */
862 /* Constant, e.g. from "const" in Pascal. */
863 ADD_PSYMBOL_TO_LIST (namestring
, p
- namestring
,
864 VAR_NAMESPACE
, LOC_CONST
,
865 objfile
->static_psymbols
, CUR_SYMBOL_VALUE
,
866 psymtab_language
, objfile
);
870 CUR_SYMBOL_VALUE
+= ANOFFSET(section_offsets
, SECT_OFF_TEXT
);
871 if (pst
&& pst
->textlow
== 0)
872 pst
->textlow
= CUR_SYMBOL_VALUE
;
874 ADD_PSYMBOL_TO_LIST (namestring
, p
- namestring
,
875 VAR_NAMESPACE
, LOC_BLOCK
,
876 objfile
->static_psymbols
, CUR_SYMBOL_VALUE
,
877 psymtab_language
, objfile
);
881 CUR_SYMBOL_VALUE
+= ANOFFSET(section_offsets
, SECT_OFF_TEXT
);
882 if (pst
&& pst
->textlow
== 0)
883 pst
->textlow
= CUR_SYMBOL_VALUE
;
885 ADD_PSYMBOL_TO_LIST (namestring
, p
- namestring
,
886 VAR_NAMESPACE
, LOC_BLOCK
,
887 objfile
->global_psymbols
, CUR_SYMBOL_VALUE
,
888 psymtab_language
, objfile
);
896 /* It is a C++ nested symbol. We don't need to record it
897 (I don't think); if we try to look up foo::bar::baz,
898 then symbols for the symtab containing foo should get
900 /* Someone says sun cc puts out symbols like
901 /foo/baz/maclib::/usr/local/bin/maclib,
902 which would get here with a symbol type of ':'. */
906 /* Unexpected symbol descriptor. The second and subsequent stabs
907 of a continued stab can show up here. The question is
908 whether they ever can mimic a normal stab--it would be
909 nice if not, since we certainly don't want to spend the
910 time searching to the end of every string looking for
913 complain (&unknown_symchar_complaint
, p
[1]);
918 CUR_SYMBOL_VALUE
+= ANOFFSET(section_offsets
, SECT_OFF_TEXT
);
920 HANDLE_RBRAC(CUR_SYMBOL_VALUE
);
927 /* If we haven't found it yet, ignore it. It's probably some
928 new type we don't know about yet. */
929 complain (&unknown_symtype_complaint
,
930 local_hex_string ((unsigned long) bufp
->n_type
));
935 DBX_SYMCOUNT (objfile
) = symnum
;
937 /* If there's stuff to be cleaned up, clean it up. */
938 if (DBX_SYMCOUNT (objfile
) > 0
939 /*FIXME, does this have a bug at start address 0? */
941 && objfile
-> ei
.entry_point
< bufp
->n_value
942 && objfile
-> ei
.entry_point
>= last_o_file_start
)
944 objfile
-> ei
.entry_file_lowpc
= last_o_file_start
;
945 objfile
-> ei
.entry_file_highpc
= bufp
->n_value
;
950 os9k_end_psymtab (pst
, psymtab_include_list
, includes_used
,
951 symnum
, end_of_text_addr
,
952 dependency_list
, dependencies_used
);
955 do_cleanups (back_to);
959 /* Allocate and partially fill a partial symtab. It will be
960 completely filled at the end of the symbol list.
962 SYMFILE_NAME is the name of the symbol-file we are reading from, and ADDR
963 is the address relative to which its symbols are (incremental) or 0
967 static struct partial_symtab
*
968 os9k_start_psymtab (objfile
, section_offsets
,
969 filename
, textlow
, ldsymoff
,ldsymcnt
, global_syms
, static_syms
)
970 struct objfile
*objfile
;
971 struct section_offsets
*section_offsets
;
976 struct partial_symbol
*global_syms
;
977 struct partial_symbol
*static_syms
;
979 struct partial_symtab
*result
=
980 start_psymtab_common(objfile
, section_offsets
,
981 filename
, textlow
, global_syms
, static_syms
);
983 result
->read_symtab_private
= (char *)
984 obstack_alloc (&objfile
-> psymbol_obstack
, sizeof (struct symloc
));
986 LDSYMOFF(result
) = ldsymoff
;
987 LDSYMCNT(result
) = ldsymcnt
;
988 result
->read_symtab
= os9k_psymtab_to_symtab
;
990 /* Deduce the source language from the filename for this psymtab. */
991 psymtab_language
= deduce_language_from_filename (filename
);
995 /* Close off the current usage of PST.
996 Returns PST or NULL if the partial symtab was empty and thrown away.
997 FIXME: List variables and peculiarities of same. */
999 static struct partial_symtab
*
1000 os9k_end_psymtab (pst
, include_list
, num_includes
, capping_symbol_cnt
,
1001 capping_text
, dependency_list
, number_dependencies
)
1002 struct partial_symtab
*pst
;
1003 char **include_list
;
1005 int capping_symbol_cnt
;
1006 CORE_ADDR capping_text
;
1007 struct partial_symtab
**dependency_list
;
1008 int number_dependencies
;
1009 /* struct partial_symbol *capping_global, *capping_static;*/
1012 struct partial_symtab
*p1
;
1013 struct objfile
*objfile
= pst
-> objfile
;
1015 if (capping_symbol_cnt
!= -1)
1016 LDSYMCNT(pst
) = capping_symbol_cnt
- LDSYMCNT(pst
);
1018 /* Under Solaris, the N_SO symbols always have a value of 0,
1019 instead of the usual address of the .o file. Therefore,
1020 we have to do some tricks to fill in texthigh and textlow.
1021 The first trick is in partial-stab.h: if we see a static
1022 or global function, and the textlow for the current pst
1023 is still 0, then we use that function's address for
1024 the textlow of the pst.
1026 Now, to fill in texthigh, we remember the last function seen
1027 in the .o file (also in partial-stab.h). Also, there's a hack in
1028 bfd/elf.c and gdb/elfread.c to pass the ELF st_size field
1029 to here via the misc_info field. Therefore, we can fill in
1030 a reliable texthigh by taking the address plus size of the
1031 last function in the file.
1033 Unfortunately, that does not cover the case where the last function
1034 in the file is static. See the paragraph below for more comments
1037 Finally, if we have a valid textlow for the current file, we run
1038 down the partial_symtab_list filling in previous texthighs that
1039 are still unknown. */
1041 if (pst
->texthigh
== 0 && last_function_name
) {
1044 struct minimal_symbol
*minsym
;
1046 p
= strchr (last_function_name
, ':');
1048 p
= last_function_name
;
1049 n
= p
- last_function_name
;
1051 strncpy (p
, last_function_name
, n
);
1054 minsym
= lookup_minimal_symbol (p
, objfile
);
1057 pst
->texthigh
= SYMBOL_VALUE_ADDRESS(minsym
)+(long)MSYMBOL_INFO(minsym
);
1059 /* This file ends with a static function, and it's
1060 difficult to imagine how hard it would be to track down
1061 the elf symbol. Luckily, most of the time no one will notice,
1062 since the next file will likely be compiled with -g, so
1063 the code below will copy the first fuction's start address
1064 back to our texthigh variable. (Also, if this file is the
1065 last one in a dynamically linked program, texthigh already
1066 has the right value.) If the next file isn't compiled
1067 with -g, then the last function in this file winds up owning
1068 all of the text space up to the next -g file, or the end (minus
1069 shared libraries). This only matters for single stepping,
1070 and even then it will still work, except that it will single
1071 step through all of the covered functions, instead of setting
1072 breakpoints around them as it usualy does. This makes it
1073 pretty slow, but at least it doesn't fail.
1075 We can fix this with a fairly big change to bfd, but we need
1076 to coordinate better with Cygnus if we want to do that. FIXME. */
1078 last_function_name
= NULL
;
1081 /* this test will be true if the last .o file is only data */
1082 if (pst
->textlow
== 0)
1083 pst
->textlow
= pst
->texthigh
;
1085 /* If we know our own starting text address, then walk through all other
1086 psymtabs for this objfile, and if any didn't know their ending text
1087 address, set it to our starting address. Take care to not set our
1088 own ending address to our starting address, nor to set addresses on
1089 `dependency' files that have both textlow and texthigh zero. */
1091 ALL_OBJFILE_PSYMTABS (objfile
, p1
) {
1092 if (p1
->texthigh
== 0 && p1
->textlow
!= 0 && p1
!= pst
) {
1093 p1
->texthigh
= pst
->textlow
;
1094 /* if this file has only data, then make textlow match texthigh */
1095 if (p1
->textlow
== 0)
1096 p1
->textlow
= p1
->texthigh
;
1101 /* End of kludge for patching Solaris textlow and texthigh. */
1103 pst
->n_global_syms
=
1104 objfile
->global_psymbols
.next
- (objfile
->global_psymbols
.list
+ pst
->globals_offset
);
1105 pst
->n_static_syms
=
1106 objfile
->static_psymbols
.next
- (objfile
->static_psymbols
.list
+ pst
->statics_offset
);
1108 pst
->number_of_dependencies
= number_dependencies
;
1109 if (number_dependencies
)
1111 pst
->dependencies
= (struct partial_symtab
**)
1112 obstack_alloc (&objfile
->psymbol_obstack
,
1113 number_dependencies
* sizeof (struct partial_symtab
*));
1114 memcpy (pst
->dependencies
, dependency_list
,
1115 number_dependencies
* sizeof (struct partial_symtab
*));
1118 pst
->dependencies
= 0;
1120 for (i
= 0; i
< num_includes
; i
++)
1122 struct partial_symtab
*subpst
=
1123 allocate_psymtab (include_list
[i
], objfile
);
1125 subpst
->section_offsets
= pst
->section_offsets
;
1126 subpst
->read_symtab_private
=
1127 (char *) obstack_alloc (&objfile
->psymbol_obstack
,
1128 sizeof (struct symloc
));
1132 subpst
->texthigh
= 0;
1134 /* We could save slight bits of space by only making one of these,
1135 shared by the entire set of include files. FIXME-someday. */
1136 subpst
->dependencies
= (struct partial_symtab
**)
1137 obstack_alloc (&objfile
->psymbol_obstack
,
1138 sizeof (struct partial_symtab
*));
1139 subpst
->dependencies
[0] = pst
;
1140 subpst
->number_of_dependencies
= 1;
1142 subpst
->globals_offset
=
1143 subpst
->n_global_syms
=
1144 subpst
->statics_offset
=
1145 subpst
->n_static_syms
= 0;
1149 subpst
->read_symtab
= pst
->read_symtab
;
1152 sort_pst_symbols (pst
);
1154 /* If there is already a psymtab or symtab for a file of this name,
1156 (If there is a symtab, more drastic things also happen.)
1157 This happens in VxWorks. */
1158 free_named_symtabs (pst
->filename
);
1160 if (num_includes
== 0
1161 && number_dependencies
== 0
1162 && pst
->n_global_syms
== 0
1163 && pst
->n_static_syms
== 0) {
1164 /* Throw away this psymtab, it's empty. We can't deallocate it, since
1165 it is on the obstack, but we can forget to chain it on the list. */
1166 struct partial_symtab
*prev_pst
;
1168 /* First, snip it out of the psymtab chain */
1170 if (pst
->objfile
->psymtabs
== pst
)
1171 pst
->objfile
->psymtabs
= pst
->next
;
1173 for (prev_pst
= pst
->objfile
->psymtabs
; prev_pst
; prev_pst
= pst
->next
)
1174 if (prev_pst
->next
== pst
)
1175 prev_pst
->next
= pst
->next
;
1177 /* Next, put it on a free list for recycling */
1178 pst
->next
= pst
->objfile
->free_psymtabs
;
1179 pst
->objfile
->free_psymtabs
= pst
;
1181 /* Indicate that psymtab was thrown away. */
1182 pst
= (struct partial_symtab
*)NULL
;
1188 os9k_psymtab_to_symtab_1 (pst
)
1189 struct partial_symtab
*pst
;
1191 struct cleanup
*old_chain
;
1199 fprintf_unfiltered (gdb_stderr
, "Psymtab for %s already read in. Shouldn't happen.\n",
1204 /* Read in all partial symtabs on which this one is dependent */
1205 for (i
= 0; i
< pst
->number_of_dependencies
; i
++)
1206 if (!pst
->dependencies
[i
]->readin
)
1208 /* Inform about additional files that need to be read in. */
1211 fputs_filtered (" ", gdb_stdout
);
1213 fputs_filtered ("and ", gdb_stdout
);
1215 printf_filtered ("%s...", pst
->dependencies
[i
]->filename
);
1216 wrap_here (""); /* Flush output */
1217 gdb_flush (gdb_stdout
);
1219 os9k_psymtab_to_symtab_1 (pst
->dependencies
[i
]);
1222 if (LDSYMCNT(pst
)) /* Otherwise it's a dummy */
1224 /* Init stuff necessary for reading in symbols */
1227 old_chain
= make_cleanup (really_free_pendings
, 0);
1229 /* Read in this file's symbols */
1230 os9k_read_ofile_symtab (pst
);
1231 sort_symtab_syms (pst
->symtab
);
1232 do_cleanups (old_chain
);
1238 /* Read in all of the symbols for a given psymtab for real.
1239 Be verbose about it if the user wants that. */
1242 os9k_psymtab_to_symtab (pst
)
1243 struct partial_symtab
*pst
;
1252 fprintf_unfiltered (gdb_stderr
, "Psymtab for %s already read in. Shouldn't happen.\n",
1257 if (LDSYMCNT(pst
) || pst
->number_of_dependencies
)
1259 /* Print the message now, before reading the string table,
1260 to avoid disconcerting pauses. */
1263 printf_filtered ("Reading in symbols for %s...", pst
->filename
);
1264 gdb_flush (gdb_stdout
);
1267 sym_bfd
= pst
->objfile
->obfd
;
1268 os9k_psymtab_to_symtab_1 (pst
);
1270 /* Match with global symbols. This only needs to be done once,
1271 after all of the symtabs and dependencies have been read in. */
1272 scan_file_globals (pst
->objfile
);
1274 /* Finish up the debug error message. */
1276 printf_filtered ("done.\n");
1280 /* Read in a defined section of a specific object file's symbols. */
1282 os9k_read_ofile_symtab (pst
)
1283 struct partial_symtab
*pst
;
1285 register struct internal_symstruct
*bufp
;
1287 unsigned max_symnum
;
1289 struct objfile
*objfile
;
1290 int sym_offset
; /* Offset to start of symbols to read */
1291 CORE_ADDR text_offset
; /* Start of text segment for symbols */
1292 int text_size
; /* Size of text segment for symbols */
1293 struct section_offsets
*section_offsets
;
1296 objfile
= pst
->objfile
;
1297 sym_offset
= LDSYMOFF(pst
);
1298 max_symnum
= LDSYMCNT(pst
);
1299 text_offset
= pst
->textlow
;
1300 text_size
= pst
->texthigh
- pst
->textlow
;
1301 section_offsets
= pst
->section_offsets
;
1303 current_objfile
= objfile
;
1304 subfile_stack
= NULL
;
1305 last_source_file
= NULL
;
1307 abfd
= objfile
->obfd
;
1308 dbg_file
= objfile
->auxf2
;
1311 /* It is necessary to actually read one symbol *before* the start
1312 of this symtab's symbols, because the GCC_COMPILED_FLAG_SYMBOL
1313 occurs before the N_SO symbol.
1314 Detecting this in read_dbx_symtab
1315 would slow down initial readin, so we look for it here instead. */
1316 if (!processing_acc_compilation
&& sym_offset
>= (int)symbol_size
)
1318 fseek (objefile
->auxf2
, sym_offset
, SEEK_CUR
);
1319 fill_sym(objfile
->auxf2
, abfd
);
1322 processing_gcc_compilation
= 0;
1323 if (bufp
->n_type
== N_TEXT
)
1325 if (STREQ (namestring
, GCC_COMPILED_FLAG_SYMBOL
))
1326 processing_gcc_compilation
= 1;
1327 else if (STREQ (namestring
, GCC2_COMPILED_FLAG_SYMBOL
))
1328 processing_gcc_compilation
= 2;
1331 /* Try to select a C++ demangling based on the compilation unit
1334 if (processing_gcc_compilation
)
1336 if (AUTO_DEMANGLING
)
1338 set_demangling_style (GNU_DEMANGLING_STYLE_STRING
);
1344 /* The N_SO starting this symtab is the first symbol, so we
1345 better not check the symbol before it. I'm not this can
1346 happen, but it doesn't hurt to check for it. */
1347 bfd_seek (symfile_bfd
, sym_offset
, SEEK_CUR
);
1348 processing_gcc_compilation
= 0;
1352 fseek(dbg_file
, (long)sym_offset
, 0);
1354 if (bufp->n_type != (unsigned char)N_SYM_SYM)
1355 error("First symbol in segment of executable not a source symbol");
1358 for (symnum
= 0; symnum
< max_symnum
; symnum
++)
1360 QUIT
; /* Allow this to be interruptable */
1361 fill_sym(dbg_file
, abfd
);
1363 type
= bufp
->n_type
;
1365 os9k_process_one_symbol (type
, bufp
->n_desc
, bufp
->n_value
,
1366 bufp
->n_strx
, section_offsets
, objfile
);
1368 /* We skip checking for a new .o or -l file; that should never
1369 happen in this routine. */
1371 else if (type
== N_TEXT
)
1373 /* I don't think this code will ever be executed, because
1374 the GCC_COMPILED_FLAG_SYMBOL usually is right before
1375 the N_SO symbol which starts this source file.
1376 However, there is no reason not to accept
1377 the GCC_COMPILED_FLAG_SYMBOL anywhere. */
1379 if (STREQ (namestring
, GCC_COMPILED_FLAG_SYMBOL
))
1380 processing_gcc_compilation
= 1;
1381 else if (STREQ (namestring
, GCC2_COMPILED_FLAG_SYMBOL
))
1382 processing_gcc_compilation
= 2;
1384 if (AUTO_DEMANGLING
)
1386 set_demangling_style (GNU_DEMANGLING_STYLE_STRING
);
1389 else if (type
& N_EXT
|| type
== (unsigned char)N_TEXT
1390 || type
== (unsigned char)N_NBTEXT
1392 /* Global symbol: see if we came across a dbx defintion for
1393 a corresponding symbol. If so, store the value. Remove
1394 syms from the chain when their values are stored, but
1395 search the whole chain, as there may be several syms from
1396 different files with the same name. */
1397 /* This is probably not true. Since the files will be read
1398 in one at a time, each reference to a global symbol will
1399 be satisfied in each file as it appears. So we skip this
1406 current_objfile
= NULL
;
1408 /* In a Solaris elf file, this variable, which comes from the
1409 value of the N_SO symbol, will still be 0. Luckily, text_offset,
1410 which comes from pst->textlow is correct. */
1411 if (last_source_start_addr
== 0)
1412 last_source_start_addr
= text_offset
;
1413 pst
->symtab
= end_symtab (text_offset
+ text_size
, 0, 0, objfile
,
1419 /* This handles a single symbol from the symbol-file, building symbols
1420 into a GDB symtab. It takes these arguments and an implicit argument.
1422 TYPE is the type field of the ".stab" symbol entry.
1423 DESC is the desc field of the ".stab" entry.
1424 VALU is the value field of the ".stab" entry.
1425 NAME is the symbol name, in our address space.
1426 SECTION_OFFSETS is a set of amounts by which the sections of this object
1427 file were relocated when it was loaded into memory.
1428 All symbols that refer
1429 to memory locations need to be offset by these amounts.
1430 OBJFILE is the object file from which we are reading symbols.
1431 It is used in end_symtab. */
1434 os9k_process_one_symbol (type
, desc
, valu
, name
, section_offsets
, objfile
)
1438 struct section_offsets
*section_offsets
;
1439 struct objfile
*objfile
;
1441 register struct context_stack
*new;
1442 /* The stab type used for the definition of the last function.
1443 N_STSYM or N_GSYM for SunOS4 acc; N_FUN for other compilers. */
1444 static int function_stab_type
= 0;
1447 /* Something is wrong if we see real data before
1448 seeing a source file name. */
1449 if (last_source_file
== NULL
&& type
!= (unsigned char)N_SO
)
1451 /* Ignore any symbols which appear before an N_SO symbol. Currently
1452 no one puts symbols there, but we should deal gracefully with the
1453 case. A complain()t might be in order (if !IGNORE_SYMBOL (type)),
1454 but this should not be an error (). */
1462 /* On most machines, the block addresses are relative to the
1463 N_SO, the linker did not relocate them (sigh). */
1464 valu
+= last_source_start_addr
;
1465 new = push_context (desc
, valu
);
1469 valu
+= last_source_start_addr
;
1470 new = pop_context();
1472 #if !defined (VARIABLES_INSIDE_BLOCK)
1473 #define VARIABLES_INSIDE_BLOCK(desc, gcc_p) 1
1476 if (!VARIABLES_INSIDE_BLOCK(desc
, processing_gcc_compilation
))
1477 local_symbols
= new->locals
;
1479 if (context_stack_depth
> 1)
1481 /* This is not the outermost LBRAC...RBRAC pair in the function,
1482 its local symbols preceded it, and are the ones just recovered
1483 from the context stack. Define the block for them (but don't
1484 bother if the block contains no symbols. Should we complain
1485 on blocks without symbols? I can't think of any useful purpose
1487 if (local_symbols
!= NULL
)
1489 /* Muzzle a compiler bug that makes end < start. (which
1490 compilers? Is this ever harmful?). */
1491 if (new->start_addr
> valu
)
1493 complain (&lbrac_rbrac_complaint
);
1494 new->start_addr
= valu
;
1496 /* Make a block for the local symbols within. */
1497 finish_block (0, &local_symbols
, new->old_blocks
,
1498 new->start_addr
, valu
, objfile
);
1503 if (context_stack_depth
== 0)
1505 within_function
= 0;
1506 /* Make a block for the local symbols within. */
1507 finish_block (new->name
, &local_symbols
, new->old_blocks
,
1508 new->start_addr
, valu
, objfile
);
1512 /* attach local_symbols to the end of new->locals */
1513 if (!new->locals
) new->locals
= local_symbols
;
1518 while (p
->next
) p
= p
->next
;
1519 p
->next
= local_symbols
;
1524 if (VARIABLES_INSIDE_BLOCK(desc
, processing_gcc_compilation
))
1525 /* Now pop locals of block just finished. */
1526 local_symbols
= new->locals
;
1531 /* This type of "symbol" really just records
1532 one line-number -- core-address correspondence.
1533 Enter it in the line list for this symbol table. */
1534 /* Relocate for dynamic loading and for ELF acc fn-relative syms. */
1535 valu
+= last_source_start_addr
;
1536 record_line (current_subfile
, (int)name
, valu
);
1539 /* The following symbol types need to have the appropriate offset added
1540 to their value; then we process symbol definitions in the name. */
1547 char *p
= strchr (name
, ':');
1557 valu
+= ANOFFSET (section_offsets
, SECT_OFF_TEXT
);
1558 n
= strrchr(name
, '/');
1568 if (symfile_depth
++ == 0) {
1569 if (last_source_file
) {
1570 end_symtab (valu
, 0, 0, objfile
, SECT_OFF_TEXT
);
1574 start_symtab (n
, dirn
, valu
);
1577 start_subfile (n
, dirn
!=NULL
? dirn
: current_subfile
->dirname
);
1583 valu
+= ANOFFSET (section_offsets
, SECT_OFF_TEXT
);
1584 function_stab_type
= type
;
1586 within_function
= 1;
1587 new = push_context (0, valu
);
1588 new->name
= os9k_define_symbol (valu
, name
, desc
, type
, objfile
);
1593 valu
+= ANOFFSET (section_offsets
, SECT_OFF_DATA
);
1594 os9k_define_symbol (valu
, name
, desc
, type
, objfile
);
1598 os9k_define_symbol (valu
, name
, desc
, type
, objfile
);
1605 if (--symfile_depth
!= 0)
1606 start_subfile(pop_subfile(), current_subfile
->dirname
);
1610 complain (&unknown_symtype_complaint
,
1611 local_hex_string((unsigned long) type
));
1618 previous_stab_code
= type
;
1621 /* Parse the user's idea of an offset for dynamic linking, into our idea
1622 of how to represent it for fast symbol reading. */
1624 static struct section_offsets
*
1625 os9k_symfile_offsets (objfile
, addr
)
1626 struct objfile
*objfile
;
1629 struct section_offsets
*section_offsets
;
1632 objfile
->num_sections
= SECT_OFF_MAX
;
1633 section_offsets
= (struct section_offsets
*)
1634 obstack_alloc (&objfile
-> psymbol_obstack
,
1635 sizeof (struct section_offsets
)
1636 + sizeof (section_offsets
->offsets
) * (SECT_OFF_MAX
-1));
1638 for (i
= 0; i
< SECT_OFF_MAX
; i
++)
1639 ANOFFSET (section_offsets
, i
) = addr
;
1641 return section_offsets
;
1644 static struct sym_fns os9k_sym_fns
=
1646 bfd_target_os9k_flavour
,
1647 os9k_new_init
, /* sym_new_init: init anything gbl to entire symtab */
1648 os9k_symfile_init
, /* sym_init: read initial info, setup for sym_read() */
1649 os9k_symfile_read
, /* sym_read: read a symbol file into symtab */
1650 os9k_symfile_finish
, /* sym_finish: finished with file, cleanup */
1651 os9k_symfile_offsets
, /* sym_offsets: parse user's offsets to internal form*/
1652 NULL
/* next: pointer to next struct sym_fns */
1656 _initialize_os9kread ()
1658 add_symtab_fns(&os9k_sym_fns
);