1 /* Read os9/os9k symbol tables and convert to internal format, for GDB.
2 Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994
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 "libaout.h" /* FIXME Secret internal BFD stuff for a.out */
60 #include "gdb-stabs.h"
62 #include "language.h" /* Needed inside partial-stab.h */
63 #include "complaints.h"
65 #include "stabsread.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 /* Name of last function encountered. Used in Solaris to approximate
108 object file boundaries. */
109 static char *last_function_name
;
111 /* Complaints about the symbols we have encountered. */
112 extern struct complaint lbrac_complaint
;
114 extern struct complaint unknown_symtype_complaint
;
116 extern struct complaint unknown_symchar_complaint
;
118 extern struct complaint lbrac_rbrac_complaint
;
120 extern struct complaint repeated_header_complaint
;
122 extern struct complaint repeated_header_name_complaint
;
125 static struct complaint lbrac_unmatched_complaint
=
126 {"unmatched Increment Block Entry before symtab pos %d", 0, 0};
128 static struct complaint lbrac_mismatch_complaint
=
129 {"IBE/IDE symbol mismatch at symtab pos %d", 0, 0};
132 /* Local function prototypes */
134 os9k_read_ofile_symtab
PARAMS ((struct partial_symtab
*));
137 os9k_psymtab_to_symtab
PARAMS ((struct partial_symtab
*));
140 os9k_psymtab_to_symtab_1
PARAMS ((struct partial_symtab
*));
143 read_os9k_psymtab
PARAMS ((struct section_offsets
*, struct objfile
*,
147 fill_sym
PARAMS ((FILE *, bfd
*));
150 os9k_symfile_init
PARAMS ((struct objfile
*));
153 os9k_new_init
PARAMS ((struct objfile
*));
156 os9k_symfile_read
PARAMS ((struct objfile
*, struct section_offsets
*, int));
159 os9k_symfile_finish
PARAMS ((struct objfile
*));
162 os9k_process_one_symbol
PARAMS ((int, int, CORE_ADDR
, char *,
163 struct section_offsets
*, struct objfile
*));
165 static struct partial_symtab
*
166 os9k_start_psymtab
PARAMS ((struct objfile
*, struct section_offsets
*, char *,
167 CORE_ADDR
, int, int, struct partial_symbol
*,
168 struct partial_symbol
*));
170 static struct partial_symtab
*
171 os9k_end_psymtab
PARAMS ((struct partial_symtab
*, char **, int, int, CORE_ADDR
,
172 struct partial_symtab
**, int));
175 record_minimal_symbol
PARAMS ((char *, CORE_ADDR
, int, struct objfile
*,
176 struct section_offsets
*));
178 #define HANDLE_RBRAC(val) \
179 if ((val) > pst->texthigh) pst->texthigh = (val);
181 #define SWAP_STBHDR(hdrp, abfd) \
183 (hdrp)->fmtno = bfd_get_16(abfd, (unsigned char *)&(hdrp)->fmtno); \
184 (hdrp)->crc = bfd_get_32(abfd, (unsigned char *)&(hdrp)->crc); \
185 (hdrp)->offset = bfd_get_32(abfd, (unsigned char *)&(hdrp)->offset); \
186 (hdrp)->nsym = bfd_get_32(abfd, (unsigned char *)&(hdrp)->nsym); \
188 #define SWAP_STBSYM(symp, abfd) \
190 (symp)->value = bfd_get_32(abfd, (unsigned char *)&(symp)->value); \
191 (symp)->type = bfd_get_16(abfd, (unsigned char *)&(symp)->type); \
192 (symp)->stroff = bfd_get_32(abfd, (unsigned char *)&(symp)->stroff); \
202 record_minimal_symbol (name
, address
, type
, objfile
, section_offsets
)
206 struct objfile
*objfile
;
207 struct section_offsets
*section_offsets
;
209 enum minimal_symbol_type ms_type
;
215 address
+= ANOFFSET(section_offsets
, SECT_OFF_TEXT
);
233 ms_type
= mst_unknown
; break;
236 prim_record_minimal_symbol
237 (obsavestring (name
, strlen(name
), &objfile
->symbol_obstack
),
238 address
, ms_type
, objfile
);
241 /* read and process .stb file and store in minimal symbol table */
242 typedef char mhhdr
[80];
257 #define STBSYMSIZE 10
260 read_minimal_symbols(objfile
, section_offsets
)
261 struct objfile
*objfile
;
262 struct section_offsets
*section_offsets
;
267 struct stbsymbol sym
;
269 char buf
[64], buf1
[128];
272 if (fp
== NULL
) return;
273 abfd
= objfile
->obfd
;
274 fread(&hdr
.comhdr
[0], sizeof(mhhdr
), 1, fp
);
283 if (i
%2) ch
=getc(fp
);
286 fread(&hdr
.fmtno
, sizeof(hdr
.fmtno
), 1, fp
);
287 fread(&hdr
.crc
, sizeof(hdr
.crc
), 1, fp
);
288 fread(&hdr
.offset
, sizeof(hdr
.offset
), 1, fp
);
289 fread(&hdr
.nsym
, sizeof(hdr
.nsym
), 1, fp
);
290 SWAP_STBHDR(&hdr
, abfd
);
293 init_minimal_symbol_collection();
295 for (i
= hdr
.nsym
; i
> 0; i
--) {
296 fseek(fp
, (long)off
, 0);
297 fread(&sym
.value
, sizeof(sym
.value
), 1, fp
);
298 fread(&sym
.type
, sizeof(sym
.type
), 1, fp
);
299 fread(&sym
.stroff
, sizeof(sym
.stroff
), 1, fp
);
300 SWAP_STBSYM (&sym
, abfd
);
301 fseek(fp
, (long)sym
.stroff
, 0);
310 record_minimal_symbol(buf1
, sym
.value
, sym
.type
&7, objfile
, section_offsets
);
313 install_minimal_symbols (objfile
);
317 /* Scan and build partial symbols for a symbol file.
318 We have been initialized by a call to os9k_symfile_init, which
319 put all the relevant info into a "struct os9k_symfile_info",
320 hung off the objfile structure.
322 SECTION_OFFSETS contains offsets relative to which the symbols in the
323 various sections are (depending where the sections were actually loaded).
324 MAINLINE is true if we are reading the main symbol
325 table (as opposed to a shared lib or dynamically loaded file). */
328 os9k_symfile_read (objfile
, section_offsets
, mainline
)
329 struct objfile
*objfile
;
330 struct section_offsets
*section_offsets
;
331 int mainline
; /* FIXME comments above */
334 struct cleanup
*back_to
;
336 sym_bfd
= objfile
->obfd
;
337 /* If we are reinitializing, or if we have never loaded syms yet, init */
338 if (mainline
|| objfile
->global_psymbols
.size
== 0 ||
339 objfile
->static_psymbols
.size
== 0)
340 init_psymbol_list (objfile
, DBX_SYMCOUNT (objfile
));
343 back_to
= make_cleanup (really_free_pendings
, 0);
345 make_cleanup (discard_minimal_symbols
, 0);
346 read_minimal_symbols (objfile
, section_offsets
);
348 /* Now that the symbol table data of the executable file are all in core,
349 process them and define symbols accordingly. */
350 read_os9k_psymtab (section_offsets
, objfile
,
351 DBX_TEXT_ADDR (objfile
),
352 DBX_TEXT_SIZE (objfile
));
354 do_cleanups (back_to
);
357 /* Initialize anything that needs initializing when a completely new
358 symbol file is specified (not just adding some symbols from another
359 file, e.g. a shared library). */
362 os9k_new_init (ignore
)
363 struct objfile
*ignore
;
365 stabsread_new_init ();
366 buildsym_new_init ();
369 init_header_files ();
373 /* os9k_symfile_init ()
374 It is passed a struct objfile which contains, among other things,
375 the BFD for the file whose symbols are being read, and a slot for a pointer
376 to "private data" which we fill with goodies.
378 Since BFD doesn't know how to read debug symbols in a format-independent
379 way (and may never do so...), we have to do it ourselves. We will never
380 be called unless this is an a.out (or very similar) file.
381 FIXME, there should be a cleaner peephole into the BFD environment here. */
384 os9k_symfile_init (objfile
)
385 struct objfile
*objfile
;
387 bfd
*sym_bfd
= objfile
->obfd
;
388 char *name
= bfd_get_filename (sym_bfd
);
389 char dbgname
[512], stbname
[512];
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 text_sect
= bfd_get_section_by_name (sym_bfd
, ".text");
416 error ("Can't find .text section in file");
417 DBX_TEXT_ADDR (objfile
) = bfd_section_vma (sym_bfd
, text_sect
);
418 DBX_TEXT_SIZE (objfile
) = bfd_section_size (sym_bfd
, text_sect
);
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 ();
451 #define SYNC (int)0xefbefeca
453 #define SWAP_DBGHDR(hdrp, abfd) \
455 (hdrp)->sync = bfd_get_32(abfd, (unsigned char *)&(hdrp)->sync); \
456 (hdrp)->rev = bfd_get_16(abfd, (unsigned char *)&(hdrp)->rev); \
457 (hdrp)->crc = bfd_get_32(abfd, (unsigned char *)&(hdrp)->crc); \
458 (hdrp)->os = bfd_get_16(abfd, (unsigned char *)&(hdrp)->os); \
459 (hdrp)->cpu = bfd_get_16(abfd, (unsigned char *)&(hdrp)->cpu); \
462 #define N_SYM_CMPLR 0
463 #define N_SYM_SLINE 1
465 #define N_SYM_LBRAC 3
466 #define N_SYM_RBRAC 4
469 struct internal_symstruct
{
475 static struct internal_symstruct symbol
;
476 static struct internal_symstruct
*symbuf
= &symbol
;
477 static char strbuf
[4096];
478 static struct st_dbghdr dbghdr
;
479 static short cmplrid
;
481 #define VER_PRE_ULTRAC ((short)4)
482 #define VER_ULTRAC ((short)5)
485 fill_sym (dbg_file
, abfd
)
494 int nbytes
= fread(&si
, sizeof(si
), 1, dbg_file
);
498 perror_with_name ("reading .dbg file.");
501 symbuf
->n_strx
= NULL
;
502 symbuf
->n_type
= bfd_get_16 (abfd
, (unsigned char *)&si
);
503 symbuf
->n_type
= 0xf & symbuf
->n_type
;
504 switch (symbuf
->n_type
)
507 fread(&si
, sizeof(si
), 1, dbg_file
);
508 symbuf
->n_desc
= bfd_get_16(abfd
, (unsigned char *)&si
);
509 cmplrid
= symbuf
->n_desc
& 0xff;
512 fread(&li
, sizeof(li
), 1, dbg_file
);
513 symbuf
->n_value
= bfd_get_32(abfd
, (unsigned char *)&li
);
514 fread(&li
, sizeof(li
), 1, dbg_file
);
515 li
= bfd_get_32(abfd
, (unsigned char *)&li
);
516 symbuf
->n_strx
= (char *)(li
>> 12);
517 symbuf
->n_desc
= li
& 0xfff;
520 fread(&li
, sizeof(li
), 1, dbg_file
);
521 symbuf
->n_value
= bfd_get_32(abfd
, (unsigned char *)&li
);
525 strbuf
[si
++] = (char) ii
;
526 } while (ii
!= 0 || si
% 2 != 0);
527 symbuf
->n_strx
= strbuf
;
528 p
= (char *) strchr (strbuf
, ':');
530 if ((p
[1] == 'F' || p
[1] == 'f') && cmplrid
== VER_PRE_ULTRAC
)
532 fread(&si
, sizeof(si
), 1, dbg_file
);
533 nmask
= bfd_get_16(abfd
, (unsigned char *)&si
);
534 for (ii
=0; ii
<nmask
; ii
++)
535 fread(&si
, sizeof(si
), 1, dbg_file
);
539 fread(&li
, sizeof(li
), 1, dbg_file
);
540 symbuf
->n_value
= bfd_get_32(abfd
, (unsigned char *)&li
);
543 fread(&li
, sizeof(li
), 1, dbg_file
);
544 symbuf
->n_value
= bfd_get_32(abfd
, (unsigned char *)&li
);
552 /* Given pointers to an a.out symbol table in core containing dbx
553 style data, setup partial_symtab's describing each source file for
554 which debugging information is available.
555 SYMFILE_NAME is the name of the file we are reading from
556 and SECTION_OFFSETS is the set of offsets for the various sections
557 of the file (a set of zeros if the mainline program). */
560 read_os9k_psymtab (section_offsets
, objfile
, text_addr
, text_size
)
561 struct section_offsets
*section_offsets
;
562 struct objfile
*objfile
;
566 register struct internal_symstruct
*bufp
= 0; /* =0 avoids gcc -Wall glitch*/
567 register char *namestring
;
568 int past_first_source_file
= 0;
569 CORE_ADDR last_o_file_start
= 0;
571 struct cleanup
*back_to
;
576 /* End of the text segment of the executable file. */
577 static CORE_ADDR end_of_text_addr
;
579 /* Current partial symtab */
580 static struct partial_symtab
*pst
= 0;
582 /* List of current psymtab's include files */
583 char **psymtab_include_list
;
584 int includes_allocated
;
587 /* Index within current psymtab dependency list */
588 struct partial_symtab
**dependency_list
;
589 int dependencies_used
, dependencies_allocated
;
591 includes_allocated
= 30;
593 psymtab_include_list
= (char **) alloca (includes_allocated
*
596 dependencies_allocated
= 30;
597 dependencies_used
= 0;
599 (struct partial_symtab
**) alloca (dependencies_allocated
*
600 sizeof (struct partial_symtab
*));
602 last_source_file
= NULL
;
604 #ifdef END_OF_TEXT_DEFAULT
605 end_of_text_addr
= END_OF_TEXT_DEFAULT
;
607 end_of_text_addr
= text_addr
+ section_offsets
->offsets
[SECT_OFF_TEXT
]
608 + text_size
; /* Relocate */
611 abfd
= objfile
->obfd
;
615 fread(&dbghdr
.sync
, sizeof(dbghdr
.sync
), 1, fp
);
616 fread(&dbghdr
.rev
, sizeof(dbghdr
.rev
), 1, fp
);
617 fread(&dbghdr
.crc
, sizeof(dbghdr
.crc
), 1, fp
);
618 fread(&dbghdr
.os
, sizeof(dbghdr
.os
), 1, fp
);
619 fread(&dbghdr
.cpu
, sizeof(dbghdr
.cpu
), 1, fp
);
620 SWAP_DBGHDR(&dbghdr
, abfd
);
628 /* Get the symbol for this run and pull out some info */
629 QUIT
; /* allow this to be interruptable */
630 cursymoffset
= ftell(objfile
->auxf2
);
631 ret
= fill_sym(objfile
->auxf2
, abfd
);
636 /* Special case to speed up readin. */
637 if (bufp
->n_type
== (short)N_SYM_SLINE
) continue;
639 #define CUR_SYMBOL_VALUE bufp->n_value
642 switch (bufp
->n_type
)
650 CUR_SYMBOL_VALUE
+= ANOFFSET(section_offsets
, SECT_OFF_TEXT
);
651 if (psymfile_depth
== 1 && pst
)
653 os9k_end_psymtab (pst
, psymtab_include_list
, includes_used
,
654 symnum
, CUR_SYMBOL_VALUE
,
655 dependency_list
, dependencies_used
);
656 pst
= (struct partial_symtab
*) 0;
658 dependencies_used
= 0;
663 case N_SYM_SYM
: /* Typedef or automatic variable. */
664 namestring
= bufp
->n_strx
;
665 p
= (char *) strchr (namestring
, ':');
667 continue; /* Not a debugging symbol. */
669 /* Main processing section for debugging symbols which
670 the initial read through the symbol tables needs to worry
671 about. If we reach this point, the symbol which we are
672 considering is definitely one we are interested in.
673 p must also contain the (valid) index into the namestring
674 which indicates the debugging type symbol. */
681 enum language tmp_language
;
685 valu
= CUR_SYMBOL_VALUE
;
687 valu
+= ANOFFSET (section_offsets
, SECT_OFF_TEXT
);
688 past_first_source_file
= 1;
690 p
= strchr(namestring
, ':');
691 if (p
) n
= p
-namestring
;
692 else n
= strlen(namestring
);
694 strncpy(str
, namestring
, n
);
697 if (psymfile_depth
== 0) {
699 pst
= os9k_start_psymtab (objfile
, section_offsets
,
703 objfile
-> global_psymbols
.next
,
704 objfile
-> static_psymbols
.next
);
705 } else { /* this is a include file */
706 tmp_language
= deduce_language_from_filename (str
);
707 if (tmp_language
!= language_unknown
708 && (tmp_language
!= language_c
709 || psymtab_language
!= language_cplus
))
710 psymtab_language
= tmp_language
;
713 if (pst && STREQ (str, pst->filename))
717 for (i = 0; i < includes_used; i++)
718 if (STREQ (str, psymtab_include_list[i]))
728 psymtab_include_list
[includes_used
++] = str
;
729 if (includes_used
>= includes_allocated
)
731 char **orig
= psymtab_include_list
;
733 psymtab_include_list
= (char **)
734 alloca ((includes_allocated
*= 2) * sizeof (char *));
735 memcpy ((PTR
)psymtab_include_list
, (PTR
)orig
,
736 includes_used
* sizeof (char *));
745 ADD_PSYMBOL_ADDR_TO_LIST (namestring
, p
- namestring
,
746 VAR_NAMESPACE
, LOC_STATIC
,
747 objfile
->static_psymbols
,
749 psymtab_language
, objfile
);
752 ADD_PSYMBOL_ADDR_TO_LIST (namestring
, p
- namestring
,
753 VAR_NAMESPACE
, LOC_STATIC
,
754 objfile
->global_psymbols
,
756 psymtab_language
, objfile
);
760 if (p
!= namestring
) /* a name is there, not just :T... */
762 ADD_PSYMBOL_TO_LIST (namestring
, p
- namestring
,
763 STRUCT_NAMESPACE
, LOC_TYPEDEF
,
764 objfile
->static_psymbols
,
766 psymtab_language
, objfile
);
769 /* Also a typedef with the same name. */
770 ADD_PSYMBOL_TO_LIST (namestring
, p
- namestring
,
771 VAR_NAMESPACE
, LOC_TYPEDEF
,
772 objfile
->static_psymbols
,
773 CUR_SYMBOL_VALUE
, psymtab_language
,
777 /* The semantics of C++ state that "struct foo { ... }"
778 also defines a typedef for "foo". Unfortuantely, cfront
779 never makes the typedef when translating from C++ to C.
780 We make the typedef here so that "ptype foo" works as
781 expected for cfront translated code. */
782 else if (psymtab_language
== language_cplus
)
784 /* Also a typedef with the same name. */
785 ADD_PSYMBOL_TO_LIST (namestring
, p
- namestring
,
786 VAR_NAMESPACE
, LOC_TYPEDEF
,
787 objfile
->static_psymbols
,
788 CUR_SYMBOL_VALUE
, psymtab_language
,
794 if (p
!= namestring
) /* a name is there, not just :T... */
796 ADD_PSYMBOL_TO_LIST (namestring
, p
- namestring
,
797 VAR_NAMESPACE
, LOC_TYPEDEF
,
798 objfile
->static_psymbols
,
800 psymtab_language
, objfile
);
803 /* If this is an enumerated type, we need to
804 add all the enum constants to the partial symbol
805 table. This does not cover enums without names, e.g.
806 "enum {a, b} c;" in C, but fortunately those are
807 rare. There is no way for GDB to find those from the
808 enum type without spending too much time on it. Thus
809 to solve this problem, the compiler needs to put out the
810 enum in a nameless type. GCC2 does this. */
812 /* We are looking for something of the form
813 <name> ":" ("t" | "T") [<number> "="] "e" <size>
814 {<constant> ":" <value> ","} ";". */
816 /* Skip over the colon and the 't' or 'T'. */
818 /* This type may be given a number. Also, numbers can come
819 in pairs like (0,26). Skip over it. */
820 while ((*p
>= '0' && *p
<= '9')
821 || *p
== '(' || *p
== ',' || *p
== ')'
827 /* We have found an enumerated type. skip size */
828 while (*p
>= '0' && *p
<= '9') p
++;
829 /* According to comments in read_enum_type
830 a comma could end it instead of a semicolon.
831 I don't know where that happens.
833 while (*p
&& *p
!= ';' && *p
!= ',')
837 /* Check for and handle cretinous dbx symbol name
840 p = next_symbol_text ();
843 /* Point to the character after the name
844 of the enum constant. */
845 for (q
= p
; *q
&& *q
!= ':'; q
++)
847 /* Note that the value doesn't matter for
848 enum constants in psymtabs, just in symtabs. */
849 ADD_PSYMBOL_TO_LIST (p
, q
- p
,
850 VAR_NAMESPACE
, LOC_CONST
,
851 objfile
->static_psymbols
, 0,
852 psymtab_language
, objfile
);
853 /* Point past the name. */
855 /* Skip over the value. */
856 while (*p
&& *p
!= ',')
858 /* Advance past the comma. */
865 /* Constant, e.g. from "const" in Pascal. */
866 ADD_PSYMBOL_TO_LIST (namestring
, p
- namestring
,
867 VAR_NAMESPACE
, LOC_CONST
,
868 objfile
->static_psymbols
, CUR_SYMBOL_VALUE
,
869 psymtab_language
, objfile
);
873 CUR_SYMBOL_VALUE
+= ANOFFSET(section_offsets
, SECT_OFF_TEXT
);
874 if (pst
&& pst
->textlow
== 0)
875 pst
->textlow
= CUR_SYMBOL_VALUE
;
877 ADD_PSYMBOL_TO_LIST (namestring
, p
- namestring
,
878 VAR_NAMESPACE
, LOC_BLOCK
,
879 objfile
->static_psymbols
, CUR_SYMBOL_VALUE
,
880 psymtab_language
, objfile
);
884 CUR_SYMBOL_VALUE
+= ANOFFSET(section_offsets
, SECT_OFF_TEXT
);
885 if (pst
&& pst
->textlow
== 0)
886 pst
->textlow
= CUR_SYMBOL_VALUE
;
888 ADD_PSYMBOL_TO_LIST (namestring
, p
- namestring
,
889 VAR_NAMESPACE
, LOC_BLOCK
,
890 objfile
->global_psymbols
, CUR_SYMBOL_VALUE
,
891 psymtab_language
, objfile
);
900 /* It is a C++ nested symbol. We don't need to record it
901 (I don't think); if we try to look up foo::bar::baz,
902 then symbols for the symtab containing foo should get
904 /* Someone says sun cc puts out symbols like
905 /foo/baz/maclib::/usr/local/bin/maclib,
906 which would get here with a symbol type of ':'. */
910 /* Unexpected symbol descriptor. The second and subsequent stabs
911 of a continued stab can show up here. The question is
912 whether they ever can mimic a normal stab--it would be
913 nice if not, since we certainly don't want to spend the
914 time searching to the end of every string looking for
917 complain (&unknown_symchar_complaint
, p
[1]);
922 CUR_SYMBOL_VALUE
+= ANOFFSET(section_offsets
, SECT_OFF_TEXT
);
924 HANDLE_RBRAC(CUR_SYMBOL_VALUE
);
931 /* If we haven't found it yet, ignore it. It's probably some
932 new type we don't know about yet. */
933 complain (&unknown_symtype_complaint
,
934 local_hex_string ((unsigned long) bufp
->n_type
));
939 DBX_SYMCOUNT (objfile
) = symnum
;
941 /* If there's stuff to be cleaned up, clean it up. */
942 if (DBX_SYMCOUNT (objfile
) > 0
943 /*FIXME, does this have a bug at start address 0? */
945 && objfile
-> ei
.entry_point
< bufp
->n_value
946 && objfile
-> ei
.entry_point
>= last_o_file_start
)
948 objfile
-> ei
.entry_file_lowpc
= last_o_file_start
;
949 objfile
-> ei
.entry_file_highpc
= bufp
->n_value
;
954 os9k_end_psymtab (pst
, psymtab_include_list
, includes_used
,
955 symnum
, end_of_text_addr
,
956 dependency_list
, dependencies_used
);
959 do_cleanups (back_to);
963 /* Allocate and partially fill a partial symtab. It will be
964 completely filled at the end of the symbol list.
966 SYMFILE_NAME is the name of the symbol-file we are reading from, and ADDR
967 is the address relative to which its symbols are (incremental) or 0
971 static struct partial_symtab
*
972 os9k_start_psymtab (objfile
, section_offsets
,
973 filename
, textlow
, ldsymoff
,ldsymcnt
, global_syms
, static_syms
)
974 struct objfile
*objfile
;
975 struct section_offsets
*section_offsets
;
980 struct partial_symbol
*global_syms
;
981 struct partial_symbol
*static_syms
;
983 struct partial_symtab
*result
=
984 start_psymtab_common(objfile
, section_offsets
,
985 filename
, textlow
, global_syms
, static_syms
);
987 result
->read_symtab_private
= (char *)
988 obstack_alloc (&objfile
-> psymbol_obstack
, sizeof (struct symloc
));
990 LDSYMOFF(result
) = ldsymoff
;
991 LDSYMCNT(result
) = ldsymcnt
;
992 result
->read_symtab
= os9k_psymtab_to_symtab
;
994 /* Deduce the source language from the filename for this psymtab. */
995 psymtab_language
= deduce_language_from_filename (filename
);
999 /* Close off the current usage of PST.
1000 Returns PST or NULL if the partial symtab was empty and thrown away.
1001 FIXME: List variables and peculiarities of same. */
1003 static struct partial_symtab
*
1004 os9k_end_psymtab (pst
, include_list
, num_includes
, capping_symbol_cnt
,
1005 capping_text
, dependency_list
, number_dependencies
)
1006 struct partial_symtab
*pst
;
1007 char **include_list
;
1009 int capping_symbol_cnt
;
1010 CORE_ADDR capping_text
;
1011 struct partial_symtab
**dependency_list
;
1012 int number_dependencies
;
1013 /* struct partial_symbol *capping_global, *capping_static;*/
1016 struct partial_symtab
*p1
;
1017 struct objfile
*objfile
= pst
-> objfile
;
1019 if (capping_symbol_cnt
!= -1)
1020 LDSYMCNT(pst
) = capping_symbol_cnt
- LDSYMCNT(pst
);
1022 /* Under Solaris, the N_SO symbols always have a value of 0,
1023 instead of the usual address of the .o file. Therefore,
1024 we have to do some tricks to fill in texthigh and textlow.
1025 The first trick is in partial-stab.h: if we see a static
1026 or global function, and the textlow for the current pst
1027 is still 0, then we use that function's address for
1028 the textlow of the pst.
1030 Now, to fill in texthigh, we remember the last function seen
1031 in the .o file (also in partial-stab.h). Also, there's a hack in
1032 bfd/elf.c and gdb/elfread.c to pass the ELF st_size field
1033 to here via the misc_info field. Therefore, we can fill in
1034 a reliable texthigh by taking the address plus size of the
1035 last function in the file.
1037 Unfortunately, that does not cover the case where the last function
1038 in the file is static. See the paragraph below for more comments
1041 Finally, if we have a valid textlow for the current file, we run
1042 down the partial_symtab_list filling in previous texthighs that
1043 are still unknown. */
1045 if (pst
->texthigh
== 0 && last_function_name
) {
1048 struct minimal_symbol
*minsym
;
1050 p
= strchr (last_function_name
, ':');
1052 p
= last_function_name
;
1053 n
= p
- last_function_name
;
1055 strncpy (p
, last_function_name
, n
);
1058 minsym
= lookup_minimal_symbol (p
, NULL
, objfile
);
1061 pst
->texthigh
= SYMBOL_VALUE_ADDRESS(minsym
)+(long)MSYMBOL_INFO(minsym
);
1063 /* This file ends with a static function, and it's
1064 difficult to imagine how hard it would be to track down
1065 the elf symbol. Luckily, most of the time no one will notice,
1066 since the next file will likely be compiled with -g, so
1067 the code below will copy the first fuction's start address
1068 back to our texthigh variable. (Also, if this file is the
1069 last one in a dynamically linked program, texthigh already
1070 has the right value.) If the next file isn't compiled
1071 with -g, then the last function in this file winds up owning
1072 all of the text space up to the next -g file, or the end (minus
1073 shared libraries). This only matters for single stepping,
1074 and even then it will still work, except that it will single
1075 step through all of the covered functions, instead of setting
1076 breakpoints around them as it usualy does. This makes it
1077 pretty slow, but at least it doesn't fail.
1079 We can fix this with a fairly big change to bfd, but we need
1080 to coordinate better with Cygnus if we want to do that. FIXME. */
1082 last_function_name
= NULL
;
1085 /* this test will be true if the last .o file is only data */
1086 if (pst
->textlow
== 0)
1087 pst
->textlow
= pst
->texthigh
;
1089 /* If we know our own starting text address, then walk through all other
1090 psymtabs for this objfile, and if any didn't know their ending text
1091 address, set it to our starting address. Take care to not set our
1092 own ending address to our starting address, nor to set addresses on
1093 `dependency' files that have both textlow and texthigh zero. */
1095 ALL_OBJFILE_PSYMTABS (objfile
, p1
) {
1096 if (p1
->texthigh
== 0 && p1
->textlow
!= 0 && p1
!= pst
) {
1097 p1
->texthigh
= pst
->textlow
;
1098 /* if this file has only data, then make textlow match texthigh */
1099 if (p1
->textlow
== 0)
1100 p1
->textlow
= p1
->texthigh
;
1105 /* End of kludge for patching Solaris textlow and texthigh. */
1107 pst
->n_global_syms
=
1108 objfile
->global_psymbols
.next
- (objfile
->global_psymbols
.list
+ pst
->globals_offset
);
1109 pst
->n_static_syms
=
1110 objfile
->static_psymbols
.next
- (objfile
->static_psymbols
.list
+ pst
->statics_offset
);
1112 pst
->number_of_dependencies
= number_dependencies
;
1113 if (number_dependencies
)
1115 pst
->dependencies
= (struct partial_symtab
**)
1116 obstack_alloc (&objfile
->psymbol_obstack
,
1117 number_dependencies
* sizeof (struct partial_symtab
*));
1118 memcpy (pst
->dependencies
, dependency_list
,
1119 number_dependencies
* sizeof (struct partial_symtab
*));
1122 pst
->dependencies
= 0;
1124 for (i
= 0; i
< num_includes
; i
++)
1126 struct partial_symtab
*subpst
=
1127 allocate_psymtab (include_list
[i
], objfile
);
1129 subpst
->section_offsets
= pst
->section_offsets
;
1130 subpst
->read_symtab_private
=
1131 (char *) obstack_alloc (&objfile
->psymbol_obstack
,
1132 sizeof (struct symloc
));
1136 subpst
->texthigh
= 0;
1138 /* We could save slight bits of space by only making one of these,
1139 shared by the entire set of include files. FIXME-someday. */
1140 subpst
->dependencies
= (struct partial_symtab
**)
1141 obstack_alloc (&objfile
->psymbol_obstack
,
1142 sizeof (struct partial_symtab
*));
1143 subpst
->dependencies
[0] = pst
;
1144 subpst
->number_of_dependencies
= 1;
1146 subpst
->globals_offset
=
1147 subpst
->n_global_syms
=
1148 subpst
->statics_offset
=
1149 subpst
->n_static_syms
= 0;
1153 subpst
->read_symtab
= pst
->read_symtab
;
1156 sort_pst_symbols (pst
);
1158 /* If there is already a psymtab or symtab for a file of this name,
1160 (If there is a symtab, more drastic things also happen.)
1161 This happens in VxWorks. */
1162 free_named_symtabs (pst
->filename
);
1164 if (num_includes
== 0
1165 && number_dependencies
== 0
1166 && pst
->n_global_syms
== 0
1167 && pst
->n_static_syms
== 0) {
1168 /* Throw away this psymtab, it's empty. We can't deallocate it, since
1169 it is on the obstack, but we can forget to chain it on the list. */
1170 struct partial_symtab
*prev_pst
;
1172 /* First, snip it out of the psymtab chain */
1174 if (pst
->objfile
->psymtabs
== pst
)
1175 pst
->objfile
->psymtabs
= pst
->next
;
1177 for (prev_pst
= pst
->objfile
->psymtabs
; prev_pst
; prev_pst
= pst
->next
)
1178 if (prev_pst
->next
== pst
)
1179 prev_pst
->next
= pst
->next
;
1181 /* Next, put it on a free list for recycling */
1182 pst
->next
= pst
->objfile
->free_psymtabs
;
1183 pst
->objfile
->free_psymtabs
= pst
;
1185 /* Indicate that psymtab was thrown away. */
1186 pst
= (struct partial_symtab
*)NULL
;
1192 os9k_psymtab_to_symtab_1 (pst
)
1193 struct partial_symtab
*pst
;
1195 struct cleanup
*old_chain
;
1203 fprintf_unfiltered (gdb_stderr
, "Psymtab for %s already read in. Shouldn't happen.\n",
1208 /* Read in all partial symtabs on which this one is dependent */
1209 for (i
= 0; i
< pst
->number_of_dependencies
; i
++)
1210 if (!pst
->dependencies
[i
]->readin
)
1212 /* Inform about additional files that need to be read in. */
1215 fputs_filtered (" ", gdb_stdout
);
1217 fputs_filtered ("and ", gdb_stdout
);
1219 printf_filtered ("%s...", pst
->dependencies
[i
]->filename
);
1220 wrap_here (""); /* Flush output */
1221 gdb_flush (gdb_stdout
);
1223 os9k_psymtab_to_symtab_1 (pst
->dependencies
[i
]);
1226 if (LDSYMCNT(pst
)) /* Otherwise it's a dummy */
1228 /* Init stuff necessary for reading in symbols */
1231 old_chain
= make_cleanup (really_free_pendings
, 0);
1233 /* Read in this file's symbols */
1234 os9k_read_ofile_symtab (pst
);
1235 sort_symtab_syms (pst
->symtab
);
1236 do_cleanups (old_chain
);
1242 /* Read in all of the symbols for a given psymtab for real.
1243 Be verbose about it if the user wants that. */
1246 os9k_psymtab_to_symtab (pst
)
1247 struct partial_symtab
*pst
;
1256 fprintf_unfiltered (gdb_stderr
, "Psymtab for %s already read in. Shouldn't happen.\n",
1261 if (LDSYMCNT(pst
) || pst
->number_of_dependencies
)
1263 /* Print the message now, before reading the string table,
1264 to avoid disconcerting pauses. */
1267 printf_filtered ("Reading in symbols for %s...", pst
->filename
);
1268 gdb_flush (gdb_stdout
);
1271 sym_bfd
= pst
->objfile
->obfd
;
1272 os9k_psymtab_to_symtab_1 (pst
);
1274 /* Match with global symbols. This only needs to be done once,
1275 after all of the symtabs and dependencies have been read in. */
1276 scan_file_globals (pst
->objfile
);
1278 /* Finish up the debug error message. */
1280 printf_filtered ("done.\n");
1284 /* Read in a defined section of a specific object file's symbols. */
1286 os9k_read_ofile_symtab (pst
)
1287 struct partial_symtab
*pst
;
1289 register struct internal_symstruct
*bufp
;
1291 unsigned max_symnum
;
1293 struct objfile
*objfile
;
1294 int sym_offset
; /* Offset to start of symbols to read */
1295 CORE_ADDR text_offset
; /* Start of text segment for symbols */
1296 int text_size
; /* Size of text segment for symbols */
1297 struct section_offsets
*section_offsets
;
1300 objfile
= pst
->objfile
;
1301 sym_offset
= LDSYMOFF(pst
);
1302 max_symnum
= LDSYMCNT(pst
);
1303 text_offset
= pst
->textlow
;
1304 text_size
= pst
->texthigh
- pst
->textlow
;
1305 section_offsets
= pst
->section_offsets
;
1307 current_objfile
= objfile
;
1308 subfile_stack
= NULL
;
1309 last_source_file
= NULL
;
1311 abfd
= objfile
->obfd
;
1312 dbg_file
= objfile
->auxf2
;
1315 /* It is necessary to actually read one symbol *before* the start
1316 of this symtab's symbols, because the GCC_COMPILED_FLAG_SYMBOL
1317 occurs before the N_SO symbol.
1318 Detecting this in read_dbx_symtab
1319 would slow down initial readin, so we look for it here instead. */
1320 if (!processing_acc_compilation
&& sym_offset
>= (int)symbol_size
)
1322 fseek (objefile
->auxf2
, sym_offset
, SEEK_CUR
);
1323 fill_sym(objfile
->auxf2
, abfd
);
1326 processing_gcc_compilation
= 0;
1327 if (bufp
->n_type
== N_TEXT
)
1329 if (STREQ (namestring
, GCC_COMPILED_FLAG_SYMBOL
))
1330 processing_gcc_compilation
= 1;
1331 else if (STREQ (namestring
, GCC2_COMPILED_FLAG_SYMBOL
))
1332 processing_gcc_compilation
= 2;
1335 /* Try to select a C++ demangling based on the compilation unit
1338 if (processing_gcc_compilation
)
1340 if (AUTO_DEMANGLING
)
1342 set_demangling_style (GNU_DEMANGLING_STYLE_STRING
);
1348 /* The N_SO starting this symtab is the first symbol, so we
1349 better not check the symbol before it. I'm not this can
1350 happen, but it doesn't hurt to check for it. */
1351 bfd_seek (symfile_bfd
, sym_offset
, SEEK_CUR
);
1352 processing_gcc_compilation
= 0;
1356 fseek(dbg_file
, (long)sym_offset
, 0);
1358 if (bufp->n_type != (unsigned char)N_SYM_SYM)
1359 error("First symbol in segment of executable not a source symbol");
1362 for (symnum
= 0; symnum
< max_symnum
; symnum
++)
1364 QUIT
; /* Allow this to be interruptable */
1365 fill_sym(dbg_file
, abfd
);
1367 type
= bufp
->n_type
;
1369 os9k_process_one_symbol ((int)type
, (int)bufp
->n_desc
,
1370 (CORE_ADDR
)bufp
->n_value
, bufp
->n_strx
, section_offsets
, objfile
);
1372 /* We skip checking for a new .o or -l file; that should never
1373 happen in this routine. */
1375 else if (type
== N_TEXT
)
1377 /* I don't think this code will ever be executed, because
1378 the GCC_COMPILED_FLAG_SYMBOL usually is right before
1379 the N_SO symbol which starts this source file.
1380 However, there is no reason not to accept
1381 the GCC_COMPILED_FLAG_SYMBOL anywhere. */
1383 if (STREQ (namestring
, GCC_COMPILED_FLAG_SYMBOL
))
1384 processing_gcc_compilation
= 1;
1385 else if (STREQ (namestring
, GCC2_COMPILED_FLAG_SYMBOL
))
1386 processing_gcc_compilation
= 2;
1388 if (AUTO_DEMANGLING
)
1390 set_demangling_style (GNU_DEMANGLING_STYLE_STRING
);
1393 else if (type
& N_EXT
|| type
== (unsigned char)N_TEXT
1394 || type
== (unsigned char)N_NBTEXT
1396 /* Global symbol: see if we came across a dbx defintion for
1397 a corresponding symbol. If so, store the value. Remove
1398 syms from the chain when their values are stored, but
1399 search the whole chain, as there may be several syms from
1400 different files with the same name. */
1401 /* This is probably not true. Since the files will be read
1402 in one at a time, each reference to a global symbol will
1403 be satisfied in each file as it appears. So we skip this
1410 current_objfile
= NULL
;
1412 /* In a Solaris elf file, this variable, which comes from the
1413 value of the N_SO symbol, will still be 0. Luckily, text_offset,
1414 which comes from pst->textlow is correct. */
1415 if (last_source_start_addr
== 0)
1416 last_source_start_addr
= text_offset
;
1417 pst
->symtab
= end_symtab (text_offset
+ text_size
, 0, 0, objfile
,
1423 /* This handles a single symbol from the symbol-file, building symbols
1424 into a GDB symtab. It takes these arguments and an implicit argument.
1426 TYPE is the type field of the ".stab" symbol entry.
1427 DESC is the desc field of the ".stab" entry.
1428 VALU is the value field of the ".stab" entry.
1429 NAME is the symbol name, in our address space.
1430 SECTION_OFFSETS is a set of amounts by which the sections of this object
1431 file were relocated when it was loaded into memory.
1432 All symbols that refer
1433 to memory locations need to be offset by these amounts.
1434 OBJFILE is the object file from which we are reading symbols.
1435 It is used in end_symtab. */
1438 os9k_process_one_symbol (type
, desc
, valu
, name
, section_offsets
, objfile
)
1442 struct section_offsets
*section_offsets
;
1443 struct objfile
*objfile
;
1445 register struct context_stack
*new;
1446 /* The stab type used for the definition of the last function.
1447 N_STSYM or N_GSYM for SunOS4 acc; N_FUN for other compilers. */
1448 static int function_stab_type
= 0;
1451 /* Something is wrong if we see real data before
1452 seeing a source file name. */
1453 if (last_source_file
== NULL
&& type
!= (unsigned char)N_SO
)
1455 /* Ignore any symbols which appear before an N_SO symbol. Currently
1456 no one puts symbols there, but we should deal gracefully with the
1457 case. A complain()t might be in order (if !IGNORE_SYMBOL (type)),
1458 but this should not be an error (). */
1466 /* On most machines, the block addresses are relative to the
1467 N_SO, the linker did not relocate them (sigh). */
1468 valu
+= ANOFFSET (section_offsets
, SECT_OFF_TEXT
);
1469 new = push_context (desc
, valu
);
1473 valu
+= ANOFFSET (section_offsets
, SECT_OFF_TEXT
);
1474 new = pop_context();
1476 #if !defined (OS9K_VARIABLES_INSIDE_BLOCK)
1477 #define OS9K_VARIABLES_INSIDE_BLOCK(desc, gcc_p) 1
1480 if (!OS9K_VARIABLES_INSIDE_BLOCK(desc
, processing_gcc_compilation
))
1481 local_symbols
= new->locals
;
1483 if (context_stack_depth
> 1)
1485 /* This is not the outermost LBRAC...RBRAC pair in the function,
1486 its local symbols preceded it, and are the ones just recovered
1487 from the context stack. Define the block for them (but don't
1488 bother if the block contains no symbols. Should we complain
1489 on blocks without symbols? I can't think of any useful purpose
1491 if (local_symbols
!= NULL
)
1493 /* Muzzle a compiler bug that makes end < start. (which
1494 compilers? Is this ever harmful?). */
1495 if (new->start_addr
> valu
)
1497 complain (&lbrac_rbrac_complaint
);
1498 new->start_addr
= valu
;
1500 /* Make a block for the local symbols within. */
1501 finish_block (0, &local_symbols
, new->old_blocks
,
1502 new->start_addr
, valu
, objfile
);
1507 if (context_stack_depth
== 0)
1509 within_function
= 0;
1510 /* Make a block for the local symbols within. */
1511 finish_block (new->name
, &local_symbols
, new->old_blocks
,
1512 new->start_addr
, valu
, objfile
);
1516 /* attach local_symbols to the end of new->locals */
1517 if (!new->locals
) new->locals
= local_symbols
;
1522 while (p
->next
) p
= p
->next
;
1523 p
->next
= local_symbols
;
1528 if (OS9K_VARIABLES_INSIDE_BLOCK(desc
, processing_gcc_compilation
))
1529 /* Now pop locals of block just finished. */
1530 local_symbols
= new->locals
;
1535 /* This type of "symbol" really just records
1536 one line-number -- core-address correspondence.
1537 Enter it in the line list for this symbol table. */
1538 /* Relocate for dynamic loading and for ELF acc fn-relative syms. */
1539 valu
+= ANOFFSET (section_offsets
, SECT_OFF_TEXT
);
1540 record_line (current_subfile
, (int)name
, valu
);
1543 /* The following symbol types need to have the appropriate offset added
1544 to their value; then we process symbol definitions in the name. */
1551 char *p
= strchr (name
, ':');
1561 valu
+= ANOFFSET (section_offsets
, SECT_OFF_TEXT
);
1562 n
= strrchr(name
, '/');
1572 if (symfile_depth
++ == 0) {
1573 if (last_source_file
) {
1574 end_symtab (valu
, 0, 0, objfile
, SECT_OFF_TEXT
);
1579 start_symtab (n
, dirn
, valu
);
1582 start_subfile (n
, dirn
!=NULL
? dirn
: current_subfile
->dirname
);
1588 valu
+= ANOFFSET (section_offsets
, SECT_OFF_TEXT
);
1589 function_stab_type
= type
;
1591 within_function
= 1;
1592 new = push_context (0, valu
);
1593 new->name
= define_symbol (valu
, name
, desc
, type
, objfile
);
1598 valu
+= ANOFFSET (section_offsets
, SECT_OFF_DATA
);
1599 define_symbol (valu
, name
, desc
, type
, objfile
);
1603 define_symbol (valu
, name
, desc
, type
, objfile
);
1610 if (--symfile_depth
!= 0)
1611 start_subfile(pop_subfile(), current_subfile
->dirname
);
1615 complain (&unknown_symtype_complaint
,
1616 local_hex_string((unsigned long) type
));
1623 previous_stab_code
= type
;
1626 /* Parse the user's idea of an offset for dynamic linking, into our idea
1627 of how to represent it for fast symbol reading. */
1629 static struct section_offsets
*
1630 os9k_symfile_offsets (objfile
, addr
)
1631 struct objfile
*objfile
;
1634 struct section_offsets
*section_offsets
;
1637 objfile
->num_sections
= SECT_OFF_MAX
;
1638 section_offsets
= (struct section_offsets
*)
1639 obstack_alloc (&objfile
-> psymbol_obstack
,
1640 sizeof (struct section_offsets
)
1641 + sizeof (section_offsets
->offsets
) * (SECT_OFF_MAX
-1));
1643 for (i
= 0; i
< SECT_OFF_MAX
; i
++)
1644 ANOFFSET (section_offsets
, i
) = addr
;
1646 return section_offsets
;
1649 static struct sym_fns os9k_sym_fns
=
1651 bfd_target_os9k_flavour
,
1652 os9k_new_init
, /* sym_new_init: init anything gbl to entire symtab */
1653 os9k_symfile_init
, /* sym_init: read initial info, setup for sym_read() */
1654 os9k_symfile_read
, /* sym_read: read a symbol file into symtab */
1655 os9k_symfile_finish
, /* sym_finish: finished with file, cleanup */
1656 os9k_symfile_offsets
, /* sym_offsets: parse user's offsets to internal form*/
1657 NULL
/* next: pointer to next struct sym_fns */
1661 _initialize_os9kread ()
1663 add_symtab_fns(&os9k_sym_fns
);