/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c

Bug Summary

File:	src/gnu/usr.bin/binutils/gdb/dbxread.c
Warning:	line 3178, column 7 Array access (from variable 'name') results in a null pointer dereference
Annotated Source Code

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clang -cc1 -cc1 -triple amd64-unknown-openbsd7.0 -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name dbxread.c -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 1 -pic-is-pie -mframe-pointer=all -relaxed-aliasing -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -target-feature +retpoline-indirect-calls -target-feature +retpoline-indirect-branches -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/usr/src/gnu/usr.bin/binutils/obj/gdb -resource-dir /usr/local/lib/clang/13.0.0 -D PIE_DEFAULT=1 -I . -I /usr/src/gnu/usr.bin/binutils/gdb -I /usr/src/gnu/usr.bin/binutils/gdb/config -D LOCALEDIR="/usr/share/locale" -D HAVE_CONFIG_H -I /usr/src/gnu/usr.bin/binutils/gdb/../include/opcode -I ../bfd -I /usr/src/gnu/usr.bin/binutils/gdb/../bfd -I /usr/src/gnu/usr.bin/binutils/gdb/../include -I ../intl -I /usr/src/gnu/usr.bin/binutils/gdb/../intl -D MI_OUT=1 -D TUI=1 -internal-isystem /usr/local/lib/clang/13.0.0/include -internal-externc-isystem /usr/include -O2 -fdebug-compilation-dir=/usr/src/gnu/usr.bin/binutils/obj/gdb -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fgnuc-version=4.2.1 -fcommon -vectorize-loops -vectorize-slp -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /home/ben/Projects/vmm/scan-build/2022-01-12-194120-40624-1 -x c /usr/src/gnu/usr.bin/binutils/gdb/dbxread.c
1/* Read dbx symbol tables and convert to internal format, for GDB.
 Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004.
 Free Software Foundation, Inc.

 This file is part of GDB.

 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2 of the License, or
 (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place - Suite 330,
 Boston, MA 02111-1307, USA.  */

23/* This module provides three functions: dbx_symfile_init,
 which initializes to read a symbol file; dbx_new_init, which 
 discards existing cached information when all symbols are being
 discarded; and dbx_symfile_read, which reads a symbol table
 from a file.

 dbx_symfile_read only does the minimum work necessary for letting the
 user "name" things symbolically; it does not read the entire symtab.
 Instead, it reads the external and static symbols and puts them in partial
 symbol tables.  When more extensive information is requested of a
 file, the corresponding partial symbol table is mutated into a full
 fledged symbol table by going back and reading the symbols
 for real.  dbx_psymtab_to_symtab() is the function that does this */

37#include "defs.h"
38#include "gdb_string.h"

40#if defined(__CYGNUSCLIB__)
41#include <sys/types.h>
42#include <fcntl.h>
43#endif

45#include "gdb_obstack.h"
46#include "gdb_stat.h"
47#include "symtab.h"
48#include "breakpoint.h"
49#include "target.h"
50#include "gdbcore.h"		/* for bfd stuff */
51#include "libaout.h"		/* FIXME Secret internal BFD stuff for a.out */
52#include "objfiles.h"
53#include "buildsym.h"
54#include "stabsread.h"
55#include "gdb-stabs.h"
56#include "demangle.h"
57#include "complaints.h"
58#include "cp-abi.h"
59#include "gdb_assert.h"

61#include "aout/aout64.h"
62#include "aout/stab_gnu.h"	/* We always use GNU stabs, not native, now */
63

65/* We put a pointer to this structure in the read_symtab_private field
 of the psymtab.  */

68struct symloc
{
  /* Offset within the file symbol table of first local symbol for this
     file.  */

  int ldsymoff;

  /* Length (in bytes) of the section of the symbol table devoted to
     this file's symbols (actually, the section bracketed may contain
     more than just this file's symbols).  If ldsymlen is 0, the only
     reason for this thing's existence is the dependency list.  Nothing
     else will happen when it is read in.  */

  int ldsymlen;

  /* The size of each symbol in the symbol file (in external form).  */

  int symbol_size;

  /* Further information needed to locate the symbols if they are in
     an ELF file.  */

  int symbol_offset;
  int string_offset;
  int file_string_offset;
};

95#define LDSYMOFF(p)(((struct symloc *)((p)->read_symtab_private))->ldsymoff
) (((struct symloc *)((p)->read_symtab_private))->ldsymoff)
96#define LDSYMLEN(p)(((struct symloc *)((p)->read_symtab_private))->ldsymlen
) (((struct symloc *)((p)->read_symtab_private))->ldsymlen)
97#define SYMLOC(p)((struct symloc *)((p)->read_symtab_private)) ((struct symloc *)((p)->read_symtab_private))
98#define SYMBOL_SIZE(p)(((struct symloc *)((p)->read_symtab_private))->symbol_size
) (SYMLOC(p)((struct symloc *)((p)->read_symtab_private))->symbol_size)
99#define SYMBOL_OFFSET(p)(((struct symloc *)((p)->read_symtab_private))->symbol_offset
) (SYMLOC(p)((struct symloc *)((p)->read_symtab_private))->symbol_offset)
100#define STRING_OFFSET(p)(((struct symloc *)((p)->read_symtab_private))->string_offset
) (SYMLOC(p)((struct symloc *)((p)->read_symtab_private))->string_offset)
101#define FILE_STRING_OFFSET(p)(((struct symloc *)((p)->read_symtab_private))->file_string_offset
) (SYMLOC(p)((struct symloc *)((p)->read_symtab_private))->file_string_offset)
102

104/* Remember what we deduced to be the source language of this psymtab. */

106static enum language psymtab_language = language_unknown;

108/* The BFD for this file -- implicit parameter to next_symbol_text.  */

110static bfd *symfile_bfd;

112/* The size of each symbol in the symbol file (in external form).
 This is set by dbx_symfile_read when building psymtabs, and by
 dbx_psymtab_to_symtab when building symtabs.  */

116static unsigned symbol_size;

118/* This is the offset of the symbol table in the executable file. */

120static unsigned symbol_table_offset;

122/* This is the offset of the string table in the executable file. */

124static unsigned string_table_offset;

126/* For elf+stab executables, the n_strx field is not a simple index
 into the string table.  Instead, each .o file has a base offset in
 the string table, and the associated symbols contain offsets from
 this base.  The following two variables contain the base offset for
 the current and next .o files. */

132static unsigned int file_string_table_offset;
133static unsigned int next_file_string_table_offset;

135/* .o and NLM files contain unrelocated addresses which are based at
 0.  When non-zero, this flag disables some of the special cases for
 Solaris elf+stab text addresses at location 0. */

139static int symfile_relocatable = 0;

141/* If this is nonzero, N_LBRAC, N_RBRAC, and N_SLINE entries are
 relative to the function start address.  */

144static int block_address_function_relative = 0;
145
146/* The lowest text address we have yet encountered.  This is needed
 because in an a.out file, there is no header field which tells us
 what address the program is actually going to be loaded at, so we
 need to make guesses based on the symbols (which *are* relocated to
 reflect the address it will be loaded at).  */

152static CORE_ADDR lowest_text_address;

154/* Non-zero if there is any line number info in the objfile.  Prevents
 end_psymtab from discarding an otherwise empty psymtab.  */

157static int has_line_numbers;

159/* Complaints about the symbols we have encountered.  */

161static void
162unknown_symtype_complaint (const char *arg1)
163{
complaint (&symfile_complaints, "unknown symbol type %s", arg1);
165}

167static void
168lbrac_mismatch_complaint (int arg1)
169{
complaint (&symfile_complaints,
    "N_LBRAC/N_RBRAC symbol mismatch at symtab pos %d", arg1);
172}

174static void
175repeated_header_complaint (const char *arg1, int arg2)
176{
complaint (&symfile_complaints,
    "\"repeated\" header file %s not previously seen, at symtab pos %d",
    arg1, arg2);
180}

182/* find_text_range --- find start and end of loadable code sections

 The find_text_range function finds the shortest address range that
 encloses all sections containing executable code, and stores it in
 objfile's text_addr and text_size members.

 dbx_symfile_read will use this to finish off the partial symbol
 table, in some cases.  */

191static void
192find_text_range (bfd * sym_bfd, struct objfile *objfile)
193{
asection *sec;
int found_any = 0;
CORE_ADDR start = 0;
CORE_ADDR end = 0;

for (sec = sym_bfd->sections; sec; sec = sec->next)
  if (bfd_get_section_flags (sym_bfd, sec)((sec)->flags + 0) & SEC_CODE0x020)
    {
CORE_ADDR sec_start = bfd_section_vma (sym_bfd, sec)((sec)->vma);
CORE_ADDR sec_end = sec_start + bfd_section_size (sym_bfd, sec)((sec)->_raw_size);

if (found_any)
 {
   if (sec_start < start)
     start = sec_start;
   if (sec_end > end)
     end = sec_end;
 }
else
 {
   start = sec_start;
   end = sec_end;
 }

found_any = 1;
    }

if (!found_any)
  error ("Can't find any code sections in symbol file");

DBX_TEXT_ADDR (objfile)(((objfile)->sym_stab_info)->text_addr) = start;
DBX_TEXT_SIZE (objfile)(((objfile)->sym_stab_info)->text_size) = end - start;
226}
227


230/* During initial symbol readin, we need to have a structure to keep
 track of which psymtabs have which bincls in them.  This structure
 is used during readin to setup the list of dependencies within each
 partial symbol table. */

235struct header_file_location
236{
char *name;			/* Name of header file */
int instance;			/* See above */
struct partial_symtab *pst;	/* Partial symtab that has the
		   BINCL/EINCL defs for this file */
241};

243/* The actual list and controling variables */
244static struct header_file_location *bincl_list, *next_bincl;
245static int bincls_allocated;

247/* Local function prototypes */

249extern void _initialize_dbxread (void);

251static void read_ofile_symtab (struct partial_symtab *);

253static void dbx_psymtab_to_symtab (struct partial_symtab *);

255static void dbx_psymtab_to_symtab_1 (struct partial_symtab *);

257static void read_dbx_dynamic_symtab (struct objfile *objfile);

259static void read_dbx_symtab (struct objfile *);

261static void free_bincl_list (struct objfile *);

263static struct partial_symtab *find_corresponding_bincl_psymtab (char *, int);

265static void add_bincl_to_list (struct partial_symtab *, char *, int);

267static void init_bincl_list (int, struct objfile *);

269static char *dbx_next_symbol_text (struct objfile *);

271static void fill_symbuf (bfd *);

273static void dbx_symfile_init (struct objfile *);

275static void dbx_new_init (struct objfile *);

277static void dbx_symfile_read (struct objfile *, int);

279static void dbx_symfile_finish (struct objfile *);

281static void record_minimal_symbol (char *, CORE_ADDR, int, struct objfile *);

283static void add_new_header_file (char *, int);

285static void add_old_header_file (char *, int);

287static void add_this_object_header_file (int);

289static struct partial_symtab *start_psymtab (struct objfile *, char *,
			     CORE_ADDR, int,
			     struct partial_symbol **,
			     struct partial_symbol **);

294/* Free up old header file tables */

296void
297free_header_files (void)
298{
if (this_object_header_files)
  {
    xfree (this_object_header_files);
    this_object_header_files = NULL((void*)0);
  }
n_allocated_this_object_header_files = 0;
305}

307/* Allocate new header file tables */

309void
310init_header_files (void)
311{
n_allocated_this_object_header_files = 10;
this_object_header_files = (int *) xmalloc (10 * sizeof (int));
314}

316/* Add header file number I for this object file
 at the next successive FILENUM.  */

319static void
320add_this_object_header_file (int i)
321{
if (n_this_object_header_files == n_allocated_this_object_header_files)
  {
    n_allocated_this_object_header_files *= 2;
    this_object_header_files
= (int *) xrealloc ((char *) this_object_header_files,
       n_allocated_this_object_header_files * sizeof (int));
  }

this_object_header_files[n_this_object_header_files++] = i;
331}

333/* Add to this file an "old" header file, one already seen in
 a previous object file.  NAME is the header file's name.
 INSTANCE is its instance code, to select among multiple
 symbol tables for the same header file.  */

338static void
339add_old_header_file (char *name, int instance)
340{
struct header_file *p = HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->header_files);
int i;

for (i = 0; i < N_HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->n_header_files); i++)
  if (strcmp (p[i].name, name) == 0 && instance == p[i].instance)
    {
add_this_object_header_file (i);
return;
    }
repeated_header_complaint (name, symnum);
351}

353/* Add to this file a "new" header file: definitions for its types follow.
 NAME is the header file's name.
 Most often this happens only once for each distinct header file,
 but not necessarily.  If it happens more than once, INSTANCE has
 a different value each time, and references to the header file
 use INSTANCE values to select among them.

 dbx output contains "begin" and "end" markers for each new header file,
 but at this level we just need to know which files there have been;
 so we record the file when its "begin" is seen and ignore the "end".  */

364static void
365add_new_header_file (char *name, int instance)
366{
int i;
struct header_file *hfile;

/* Make sure there is room for one more header file.  */

i = N_ALLOCATED_HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->n_allocated_header_files
);

if (N_HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->n_header_files) == i)
  {
    if (i == 0)
{
 N_ALLOCATED_HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->n_allocated_header_files
) = 10;
 HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->header_files) = (struct header_file *)
   xmalloc (10 * sizeof (struct header_file));
}
    else
{
 i *= 2;
 N_ALLOCATED_HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->n_allocated_header_files
) = i;
 HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->header_files) = (struct header_file *)
   xrealloc ((char *) HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->header_files),
      (i * sizeof (struct header_file)));
}
  }

/* Create an entry for this header file.  */

i = N_HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->n_header_files)++;
hfile = HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->header_files) + i;
hfile->name = savestring (name, strlen (name));
hfile->instance = instance;
hfile->length = 10;
hfile->vector
  = (struct type **) xmalloc (10 * sizeof (struct type *));
memset (hfile->vector, 0, 10 * sizeof (struct type *));

add_this_object_header_file (i);
404}

406#if 0
407static struct type **
408explicit_lookup_type (int real_filenum, int index)
409{
struct header_file *f = &HEADER_FILES (current_objfile)(((current_objfile)->sym_stab_info)->header_files)[real_filenum];

if (index >= f->length)
  {
    f->length *= 2;
    f->vector = (struct type **)
xrealloc (f->vector, f->length * sizeof (struct type *));
    memset (&f->vector[f->length / 2],
     '\0', f->length * sizeof (struct type *) / 2);
  }
return &f->vector[index];
421}
422#endif
423
424static void
425record_minimal_symbol (char *name, CORE_ADDR address, int type,
       struct objfile *objfile)
427{
enum minimal_symbol_type ms_type;
int section;
asection *bfd_section;

switch (type)
  {
  case N_TEXT4 | N_EXT1:
    ms_type = mst_text;
    section = SECT_OFF_TEXT (objfile)((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 436, "sect_index_text not initialized"), -1) : objfile->
sect_index_text);
    bfd_section = DBX_TEXT_SECTION (objfile)(((objfile)->sym_stab_info)->text_section);
    break;
  case N_DATA6 | N_EXT1:
    ms_type = mst_data;
    section = SECT_OFF_DATA (objfile)((objfile->sect_index_data == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 441, "sect_index_data not initialized"), -1) : objfile->
sect_index_data);
    bfd_section = DBX_DATA_SECTION (objfile)(((objfile)->sym_stab_info)->data_section);
    break;
  case N_BSS8 | N_EXT1:
    ms_type = mst_bss;
    section = SECT_OFF_BSS (objfile)(objfile)->sect_index_bss;
    bfd_section = DBX_BSS_SECTION (objfile)(((objfile)->sym_stab_info)->bss_section);
    break;
  case N_ABS2 | N_EXT1:
    ms_type = mst_abs;
    section = -1;
    bfd_section = NULL((void*)0);
    break;
454#ifdef N_SETV0x1C
  case N_SETV0x1C | N_EXT1:
    ms_type = mst_data;
    section = SECT_OFF_DATA (objfile)((objfile->sect_index_data == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 457, "sect_index_data not initialized"), -1) : objfile->
sect_index_data);
    bfd_section = DBX_DATA_SECTION (objfile)(((objfile)->sym_stab_info)->data_section);
    break;
  case N_SETV0x1C:
    /* I don't think this type actually exists; since a N_SETV is the result
       of going over many .o files, it doesn't make sense to have one
       file local.  */
    ms_type = mst_file_data;
    section = SECT_OFF_DATA (objfile)((objfile->sect_index_data == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 465, "sect_index_data not initialized"), -1) : objfile->
sect_index_data);
    bfd_section = DBX_DATA_SECTION (objfile)(((objfile)->sym_stab_info)->data_section);
    break;
468#endif
  case N_TEXT4:
  case N_NBTEXT:
  case N_FN0x1f:
  case N_FN_SEQ0x0C:
    ms_type = mst_file_text;
    section = SECT_OFF_TEXT (objfile)((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 474, "sect_index_text not initialized"), -1) : objfile->
sect_index_text);
    bfd_section = DBX_TEXT_SECTION (objfile)(((objfile)->sym_stab_info)->text_section);
    break;
  case N_DATA6:
    ms_type = mst_file_data;

    /* Check for __DYNAMIC, which is used by Sun shared libraries. 
       Record it as global even if it's local, not global, so
       lookup_minimal_symbol can find it.  We don't check symbol_leading_char
       because for SunOS4 it always is '_'.  */
    if (name[8] == 'C' && DEPRECATED_STREQ ("__DYNAMIC", name)(strcmp (("__DYNAMIC"), (name)) == 0))
ms_type = mst_data;

    /* Same with virtual function tables, both global and static.  */
    {
char *tempstring = name;
if (tempstring[0] == bfd_get_symbol_leading_char (objfile->obfd)((objfile->obfd)->xvec->symbol_leading_char))
 ++tempstring;
if (is_vtable_name (tempstring))
 ms_type = mst_data;
    }
    section = SECT_OFF_DATA (objfile)((objfile->sect_index_data == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 495, "sect_index_data not initialized"), -1) : objfile->
sect_index_data);
    bfd_section = DBX_DATA_SECTION (objfile)(((objfile)->sym_stab_info)->data_section);
    break;
  case N_BSS8:
    ms_type = mst_file_bss;
    section = SECT_OFF_BSS (objfile)(objfile)->sect_index_bss;
    bfd_section = DBX_BSS_SECTION (objfile)(((objfile)->sym_stab_info)->bss_section);
    break;
  default:
    ms_type = mst_unknown;
    section = -1;
    bfd_section = NULL((void*)0);
    break;
  }

if ((ms_type == mst_file_text || ms_type == mst_text)
    && address < lowest_text_address)
  lowest_text_address = address;

prim_record_minimal_symbol_and_info
  (name, address, ms_type, NULL((void*)0), section, bfd_section, objfile);
516}
517
518/* Scan and build partial symbols for a symbol file.
 We have been initialized by a call to dbx_symfile_init, which 
 put all the relevant info into a "struct dbx_symfile_info",
 hung off the objfile structure.

 MAINLINE is true if we are reading the main symbol
 table (as opposed to a shared lib or dynamically loaded file).  */

526static void
527dbx_symfile_read (struct objfile *objfile, int mainline)
528{
bfd *sym_bfd;
int val;
struct cleanup *back_to;

sym_bfd = objfile->obfd;

/* .o and .nlm files are relocatables with text, data and bss segs based at
   0.  This flag disables special (Solaris stabs-in-elf only) fixups for
   symbols with a value of 0.  */

symfile_relocatable = bfd_get_file_flags (sym_bfd)((sym_bfd)->flags) & HAS_RELOC0x01;

/* This is true for Solaris (and all other systems which put stabs
   in sections, hopefully, since it would be silly to do things
   differently from Solaris), and false for SunOS4 and other a.out
   file formats.  */
block_address_function_relative =
  ((0 == strncmp (bfd_get_target (sym_bfd)((sym_bfd)->xvec->name), "elf", 3))
   || (0 == strncmp (bfd_get_target (sym_bfd)((sym_bfd)->xvec->name), "som", 3))
   || (0 == strncmp (bfd_get_target (sym_bfd)((sym_bfd)->xvec->name), "coff", 4))
   || (0 == strncmp (bfd_get_target (sym_bfd)((sym_bfd)->xvec->name), "pe", 2))
   || (0 == strncmp (bfd_get_target (sym_bfd)((sym_bfd)->xvec->name), "epoc-pe", 7))
   || (0 == strncmp (bfd_get_target (sym_bfd)((sym_bfd)->xvec->name), "nlm", 3)));

val = bfd_seek (sym_bfd, DBX_SYMTAB_OFFSET (objfile)(((objfile)->sym_stab_info)->symtab_offset), SEEK_SET0);
if (val < 0)
  perror_with_name (objfile->name);

/* If we are reinitializing, or if we have never loaded syms yet, init */
if (mainline
    || (objfile->global_psymbols.size == 0
 &&  objfile->static_psymbols.size == 0))
  init_psymbol_list (objfile, DBX_SYMCOUNT (objfile)(((objfile)->sym_stab_info)->symcount));

symbol_size = DBX_SYMBOL_SIZE (objfile)(((objfile)->sym_stab_info)->symbol_size);
symbol_table_offset = DBX_SYMTAB_OFFSET (objfile)(((objfile)->sym_stab_info)->symtab_offset);

free_pending_blocks ();
back_to = make_cleanup (really_free_pendings, 0);

init_minimal_symbol_collection ();
make_cleanup_discard_minimal_symbols ();

/* Read stabs data from executable file and define symbols. */

read_dbx_symtab (objfile);

/* Add the dynamic symbols.  */

read_dbx_dynamic_symtab (objfile);

/* Install any minimal symbols that have been collected as the current
   minimal symbols for this objfile. */

install_minimal_symbols (objfile);

do_cleanups (back_to);
586}

588/* Initialize anything that needs initializing when a completely new
 symbol file is specified (not just adding some symbols from another
 file, e.g. a shared library).  */

592static void
593dbx_new_init (struct objfile *ignore)
594{
stabsread_new_init ();
buildsym_new_init ();
init_header_files ();
598}


601/* dbx_symfile_init ()
 is the dbx-specific initialization routine for reading symbols.
 It is passed a struct objfile which contains, among other things,
 the BFD for the file whose symbols are being read, and a slot for a pointer
 to "private data" which we fill with goodies.

 We read the string table into malloc'd space and stash a pointer to it.

 Since BFD doesn't know how to read debug symbols in a format-independent
 way (and may never do so...), we have to do it ourselves.  We will never
 be called unless this is an a.out (or very similar) file. 
 FIXME, there should be a cleaner peephole into the BFD environment here.  */

614#define DBX_STRINGTAB_SIZE_SIZEsizeof(long) sizeof(long)	/* FIXME */

616static void
617dbx_symfile_init (struct objfile *objfile)
618{
int val;
bfd *sym_bfd = objfile->obfd;
char *name = bfd_get_filename (sym_bfd)((char *) (sym_bfd)->filename);
asection *text_sect;
unsigned char size_temp[DBX_STRINGTAB_SIZE_SIZEsizeof(long)];

/* Allocate struct to keep track of the symfile */
objfile->sym_stab_info = (struct dbx_symfile_info *)
  xmalloc (sizeof (struct dbx_symfile_info));
memset (objfile->sym_stab_info, 0, sizeof (struct dbx_symfile_info));

DBX_TEXT_SECTION (objfile)(((objfile)->sym_stab_info)->text_section) = bfd_get_section_by_name (sym_bfd, ".text");
DBX_DATA_SECTION (objfile)(((objfile)->sym_stab_info)->data_section) = bfd_get_section_by_name (sym_bfd, ".data");
DBX_BSS_SECTION (objfile)(((objfile)->sym_stab_info)->bss_section) = bfd_get_section_by_name (sym_bfd, ".bss");

/* FIXME POKING INSIDE BFD DATA STRUCTURES */
635#define	STRING_TABLE_OFFSET(sym_bfd->origin + (((sym_bfd)->tdata.aout_data->a).
str_filepos))	(sym_bfd->origin + obj_str_filepos (sym_bfd)(((sym_bfd)->tdata.aout_data->a).str_filepos))
636#define	SYMBOL_TABLE_OFFSET(sym_bfd->origin + (((sym_bfd)->tdata.aout_data->a).
sym_filepos))	(sym_bfd->origin + obj_sym_filepos (sym_bfd)(((sym_bfd)->tdata.aout_data->a).sym_filepos))

/* FIXME POKING INSIDE BFD DATA STRUCTURES */

DBX_SYMFILE_INFO (objfile)((objfile)->sym_stab_info)->stab_section_info = NULL((void*)0);

text_sect = bfd_get_section_by_name (sym_bfd, ".text");
if (!text_sect)
  error ("Can't find .text section in symbol file");
DBX_TEXT_ADDR (objfile)(((objfile)->sym_stab_info)->text_addr) = bfd_section_vma (sym_bfd, text_sect)((text_sect)->vma);
DBX_TEXT_SIZE (objfile)(((objfile)->sym_stab_info)->text_size) = bfd_section_size (sym_bfd, text_sect)((text_sect)->_raw_size);

DBX_SYMBOL_SIZE (objfile)(((objfile)->sym_stab_info)->symbol_size) = obj_symbol_entry_size (sym_bfd)(((sym_bfd)->tdata.aout_data->a).symbol_entry_size);
DBX_SYMCOUNT (objfile)(((objfile)->sym_stab_info)->symcount) = bfd_get_symcount (sym_bfd)((sym_bfd)->symcount);
DBX_SYMTAB_OFFSET (objfile)(((objfile)->sym_stab_info)->symtab_offset) = SYMBOL_TABLE_OFFSET(sym_bfd->origin + (((sym_bfd)->tdata.aout_data->a).
sym_filepos));

/* Read the string table and stash it away in the objfile_obstack.
   When we blow away the objfile the string table goes away as well.
   Note that gdb used to use the results of attempting to malloc the
   string table, based on the size it read, as a form of sanity check
   for botched byte swapping, on the theory that a byte swapped string
   table size would be so totally bogus that the malloc would fail.  Now
   that we put in on the objfile_obstack, we can't do this since gdb gets
   a fatal error (out of virtual memory) if the size is bogus.  We can
   however at least check to see if the size is less than the size of
   the size field itself, or larger than the size of the entire file.
   Note that all valid string tables have a size greater than zero, since
   the bytes used to hold the size are included in the count. */

if (STRING_TABLE_OFFSET(sym_bfd->origin + (((sym_bfd)->tdata.aout_data->a).
str_filepos)) == 0)
  {
    /* It appears that with the existing bfd code, STRING_TABLE_OFFSET
       will never be zero, even when there is no string table.  This
       would appear to be a bug in bfd. */
    DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size) = 0;
    DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab) = NULL((void*)0);
  }
else
  {
    val = bfd_seek (sym_bfd, STRING_TABLE_OFFSET(sym_bfd->origin + (((sym_bfd)->tdata.aout_data->a).
str_filepos)), SEEK_SET0);
    if (val < 0)
perror_with_name (name);

    memset (size_temp, 0, sizeof (size_temp));
    val = bfd_bread (size_temp, sizeof (size_temp), sym_bfd);
    if (val < 0)
{
 perror_with_name (name);
}
    else if (val == 0)
{
 /* With the existing bfd code, STRING_TABLE_OFFSET will be set to
    EOF if there is no string table, and attempting to read the size
    from EOF will read zero bytes. */
 DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size) = 0;
 DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab) = NULL((void*)0);
}
    else
{
 /* Read some data that would appear to be the string table size.
    If there really is a string table, then it is probably the right
    size.  Byteswap if necessary and validate the size.  Note that
    the minimum is DBX_STRINGTAB_SIZE_SIZE.  If we just read some
    random data that happened to be at STRING_TABLE_OFFSET, because
    bfd can't tell us there is no string table, the sanity checks may
    or may not catch this. */
 DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size) = bfd_h_get_32 (sym_bfd, size_temp)((*((sym_bfd)->xvec->bfd_h_getx32)) (size_temp));

 if (DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size) < sizeof (size_temp)
     || DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size) > bfd_get_size (sym_bfd))
   error ("ridiculous string table size (%d bytes).",
   DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size));

 DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab) =
   (char *) obstack_alloc (&objfile->objfile_obstack,__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
((((objfile)->sym_stab_info)->stringtab_size))); if (__o
->chunk_limit - __o->next_free < __len) _obstack_newchunk
 (__o, __len); ((__o)->next_free += (__len)); (void) 0; })
; __extension__ ({ struct obstack *__o1 = (__h); void *value;
 value = (void *) __o1->object_base; if (__o1->next_free
 == value) __o1->maybe_empty_object = 1; __o1->next_free
 = (((((__o1->next_free) - (char *) 0)+__o1->alignment_mask
) & ~ (__o1->alignment_mask)) + (char *) 0); if (__o1->
next_free - (char *)__o1->chunk > __o1->chunk_limit -
 (char *)__o1->chunk) __o1->next_free = __o1->chunk_limit
; __o1->object_base = __o1->next_free; value; }); })
		    DBX_STRINGTAB_SIZE (objfile))__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
((((objfile)->sym_stab_info)->stringtab_size))); if (__o
->chunk_limit - __o->next_free < __len) _obstack_newchunk
 (__o, __len); ((__o)->next_free += (__len)); (void) 0; })
; __extension__ ({ struct obstack *__o1 = (__h); void *value;
 value = (void *) __o1->object_base; if (__o1->next_free
 == value) __o1->maybe_empty_object = 1; __o1->next_free
 = (((((__o1->next_free) - (char *) 0)+__o1->alignment_mask
) & ~ (__o1->alignment_mask)) + (char *) 0); if (__o1->
next_free - (char *)__o1->chunk > __o1->chunk_limit -
 (char *)__o1->chunk) __o1->next_free = __o1->chunk_limit
; __o1->object_base = __o1->next_free; value; }); });
 OBJSTAT (objfile, sz_strtab += DBX_STRINGTAB_SIZE (objfile))(objfile -> stats.sz_strtab += (((objfile)->sym_stab_info
)->stringtab_size));

 /* Now read in the string table in one big gulp.  */

 val = bfd_seek (sym_bfd, STRING_TABLE_OFFSET(sym_bfd->origin + (((sym_bfd)->tdata.aout_data->a).
str_filepos)), SEEK_SET0);
 if (val < 0)
   perror_with_name (name);
 val = bfd_bread (DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab),
	   DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size),
	   sym_bfd);
 if (val != DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size))
   perror_with_name (name);
}
  }
726}

728/* Perform any local cleanups required when we are done with a particular
 objfile.  I.E, we are in the process of discarding all symbol information
 for an objfile, freeing up all memory held for it, and unlinking the
 objfile struct from the global list of known objfiles. */

733static void
734dbx_symfile_finish (struct objfile *objfile)
735{
if (objfile->sym_stab_info != NULL((void*)0))
  {
    if (HEADER_FILES (objfile)(((objfile)->sym_stab_info)->header_files) != NULL((void*)0))
{
 int i = N_HEADER_FILES (objfile)(((objfile)->sym_stab_info)->n_header_files);
 struct header_file *hfiles = HEADER_FILES (objfile)(((objfile)->sym_stab_info)->header_files);

 while (--i >= 0)
   {
     xfree (hfiles[i].name);
     xfree (hfiles[i].vector);
   }
 xfree (hfiles);
}
    xfree (objfile->sym_stab_info);
  }
free_header_files ();
753}
754

756/* Buffer for reading the symbol table entries.  */
757static struct external_nlist symbuf[4096];
758static int symbuf_idx;
759static int symbuf_end;

761/* Name of last function encountered.  Used in Solaris to approximate
 object file boundaries.  */
763static char *last_function_name;

765/* The address in memory of the string table of the object file we are
 reading (which might not be the "main" object file, but might be a
 shared library or some other dynamically loaded thing).  This is
 set by read_dbx_symtab when building psymtabs, and by
 read_ofile_symtab when building symtabs, and is used only by
 next_symbol_text.  FIXME: If that is true, we don't need it when
 building psymtabs, right?  */
772static char *stringtab_global;

774/* These variables are used to control fill_symbuf when the stabs
 symbols are not contiguous (as may be the case when a COFF file is
 linked using --split-by-reloc).  */
777static struct stab_section_list *symbuf_sections;
778static unsigned int symbuf_left;
779static unsigned int symbuf_read;

781/* This variable stores a global stabs buffer, if we read stabs into
 memory in one chunk in order to process relocations.  */
783static bfd_byte *stabs_data;

785/* Refill the symbol table input buffer
 and set the variables that control fetching entries from it.
 Reports an error if no data available.
 This function can read past the end of the symbol table
 (into the string table) but this does no harm.  */

791static void
792fill_symbuf (bfd *sym_bfd)
793{
unsigned int count;
int nbytes;

if (stabs_data)
  {
    nbytes = sizeof (symbuf);
    if (nbytes > symbuf_left)
      nbytes = symbuf_left;
    memcpy (symbuf, stabs_data + symbuf_read, nbytes);
  }
else if (symbuf_sections == NULL((void*)0))
  {
    count = sizeof (symbuf);
    nbytes = bfd_bread (symbuf, count, sym_bfd);
  }
else
  {
    if (symbuf_left <= 0)
{
 file_ptr filepos = symbuf_sections->section->filepos;
 if (bfd_seek (sym_bfd, filepos, SEEK_SET0) != 0)
   perror_with_name (bfd_get_filename (sym_bfd)((char *) (sym_bfd)->filename));
 symbuf_left = bfd_section_size (sym_bfd, symbuf_sections->section)((symbuf_sections->section)->_raw_size);
 symbol_table_offset = filepos - symbuf_read;
 symbuf_sections = symbuf_sections->next;
}

    count = symbuf_left;
    if (count > sizeof (symbuf))
count = sizeof (symbuf);
    nbytes = bfd_bread (symbuf, count, sym_bfd);
  }

if (nbytes < 0)
  perror_with_name (bfd_get_filename (sym_bfd)((char *) (sym_bfd)->filename));
else if (nbytes == 0)
  error ("Premature end of file reading symbol table");
symbuf_end = nbytes / symbol_size;
symbuf_idx = 0;
symbuf_left -= nbytes;
symbuf_read += nbytes;
835}

837static void
838stabs_seek (int sym_offset)
839{
if (stabs_data)
  {
    symbuf_read += sym_offset;
    symbuf_left -= sym_offset;
  }
else
  bfd_seek (symfile_bfd, sym_offset, SEEK_CUR1);
847}

849#define INTERNALIZE_SYMBOL(intern, extern, abfd){ (intern).n_type = (*(unsigned char *) ((extern)->e_type)
 & 0xff); (intern).n_strx = ((*((abfd)->xvec->bfd_h_getx32
)) ((extern)->e_strx)); (intern).n_desc = ((*((abfd)->xvec
->bfd_h_getx16)) ((extern)->e_desc)); if (bfd_get_sign_extend_vma
 (abfd)) (intern).n_value = ((*((abfd)->xvec->bfd_h_getx_signed_32
)) ((extern)->e_value)); else (intern).n_value = ((*((abfd
)->xvec->bfd_h_getx32)) ((extern)->e_value)); }			\
{									\
  (intern).n_type = bfd_h_get_8 (abfd, (extern)->e_type)(*(unsigned char *) ((extern)->e_type) & 0xff);		\
  (intern).n_strx = bfd_h_get_32 (abfd, (extern)->e_strx)((*((abfd)->xvec->bfd_h_getx32)) ((extern)->e_strx));		\
  (intern).n_desc = bfd_h_get_16 (abfd, (extern)->e_desc)((*((abfd)->xvec->bfd_h_getx16)) ((extern)->e_desc));  		\
  if (bfd_get_sign_extend_vma (abfd))					\
    (intern).n_value = bfd_h_get_signed_32 (abfd, (extern)->e_value)((*((abfd)->xvec->bfd_h_getx_signed_32)) ((extern)->
e_value));	\
  else								\
    (intern).n_value = bfd_h_get_32 (abfd, (extern)->e_value)((*((abfd)->xvec->bfd_h_getx32)) ((extern)->e_value)
);	\
}

860/* Invariant: The symbol pointed to by symbuf_idx is the first one
 that hasn't been swapped.  Swap the symbol at the same time
 that symbuf_idx is incremented.  */

864/* dbx allows the text of a symbol name to be continued into the
 next symbol name!  When such a continuation is encountered
 (a \ at the end of the text of a name)
 call this function to get the continuation.  */

869static char *
870dbx_next_symbol_text (struct objfile *objfile)
871{
struct internal_nlist nlist;

if (symbuf_idx == symbuf_end)
  fill_symbuf (symfile_bfd);

symnum++;
INTERNALIZE_SYMBOL (nlist, &symbuf[symbuf_idx], symfile_bfd){ (nlist).n_type = (*(unsigned char *) ((&symbuf[symbuf_idx
])->e_type) & 0xff); (nlist).n_strx = ((*((symfile_bfd
)->xvec->bfd_h_getx32)) ((&symbuf[symbuf_idx])->
e_strx)); (nlist).n_desc = ((*((symfile_bfd)->xvec->bfd_h_getx16
)) ((&symbuf[symbuf_idx])->e_desc)); if (bfd_get_sign_extend_vma
 (symfile_bfd)) (nlist).n_value = ((*((symfile_bfd)->xvec->
bfd_h_getx_signed_32)) ((&symbuf[symbuf_idx])->e_value
)); else (nlist).n_value = ((*((symfile_bfd)->xvec->bfd_h_getx32
)) ((&symbuf[symbuf_idx])->e_value)); };
OBJSTAT (objfile, n_stabs++)(objfile -> stats.n_stabs++);

symbuf_idx++;

return nlist.n_strx + stringtab_global + file_string_table_offset;
884}
885
886/* Initialize the list of bincls to contain none and have some
 allocated.  */

889static void
890init_bincl_list (int number, struct objfile *objfile)
891{
bincls_allocated = number;
next_bincl = bincl_list = (struct header_file_location *)
  xmalloc (bincls_allocated * sizeof (struct header_file_location));
895}

897/* Add a bincl to the list.  */

899static void
900add_bincl_to_list (struct partial_symtab *pst, char *name, int instance)
901{
if (next_bincl >= bincl_list + bincls_allocated)
  {
    int offset = next_bincl - bincl_list;
    bincls_allocated *= 2;
    bincl_list = (struct header_file_location *)
xrealloc ((char *) bincl_list,
  bincls_allocated * sizeof (struct header_file_location));
    next_bincl = bincl_list + offset;
  }
next_bincl->pst = pst;
next_bincl->instance = instance;
next_bincl++->name = name;
914}

916/* Given a name, value pair, find the corresponding
 bincl in the list.  Return the partial symtab associated
 with that header_file_location.  */

920static struct partial_symtab *
921find_corresponding_bincl_psymtab (char *name, int instance)
922{
struct header_file_location *bincl;

for (bincl = bincl_list; bincl < next_bincl; bincl++)
  if (bincl->instance == instance
&& strcmp (name, bincl->name) == 0)
    return bincl->pst;

repeated_header_complaint (name, symnum);
return (struct partial_symtab *) 0;
932}

934/* Free the storage allocated for the bincl list.  */

936static void
937free_bincl_list (struct objfile *objfile)
938{
xfree (bincl_list);
bincls_allocated = 0;
941}

943static void
944do_free_bincl_list_cleanup (void *objfile)
945{
free_bincl_list (objfile);
947}

949static struct cleanup *
950make_cleanup_free_bincl_list (struct objfile *objfile)
951{
return make_cleanup (do_free_bincl_list_cleanup, objfile);
953}

955/* Set namestring based on nlist.  If the string table index is invalid, 
 give a fake name, and print a single error message per symbol file read,
 rather than abort the symbol reading or flood the user with messages.  */

959static char *
960set_namestring (struct objfile *objfile, struct internal_nlist nlist)
961{
char *namestring;

if (((unsigned) nlist.n_strx + file_string_table_offset) >=
    DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size))
  {
    complaint (&symfile_complaints, "bad string table offset in symbol %d",
 symnum);
    namestring = "<bad string table offset>";
  } 
else
  namestring = nlist.n_strx + file_string_table_offset +
    DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab);
return namestring;
975}

977/* Scan a SunOs dynamic symbol table for symbols of interest and
 add them to the minimal symbol table.  */

980static void
981read_dbx_dynamic_symtab (struct objfile *objfile)
982{
bfd *abfd = objfile->obfd;
struct cleanup *back_to;
int counter;
long dynsym_size;
long dynsym_count;
asymbol **dynsyms;
asymbol **symptr;
arelent **relptr;
long dynrel_size;
long dynrel_count;
arelent **dynrels;
CORE_ADDR sym_value;
char *name;

/* Check that the symbol file has dynamic symbols that we know about.
   bfd_arch_unknown can happen if we are reading a sun3 symbol file
   on a sun4 host (and vice versa) and bfd is not configured
   --with-target=all.  This would trigger an assertion in bfd/sunos.c,
   so we ignore the dynamic symbols in this case.  */
if (bfd_get_flavour (abfd)((abfd)->xvec->flavour) != bfd_target_aout_flavour
    || (bfd_get_file_flags (abfd)((abfd)->flags) & DYNAMIC0x40) == 0
    || bfd_get_arch (abfd) == bfd_arch_unknown)
  return;

dynsym_size = bfd_get_dynamic_symtab_upper_bound (abfd)((*((abfd)->xvec->_bfd_get_dynamic_symtab_upper_bound))
 (abfd));
if (dynsym_size < 0)
  return;

dynsyms = (asymbol **) xmalloc (dynsym_size);
back_to = make_cleanup (xfree, dynsyms);

dynsym_count = bfd_canonicalize_dynamic_symtab (abfd, dynsyms)((*((abfd)->xvec->_bfd_canonicalize_dynamic_symtab)) (abfd
, dynsyms));
if (dynsym_count < 0)
  {
    do_cleanups (back_to);
    return;
  }

/* Enter dynamic symbols into the minimal symbol table
   if this is a stripped executable.  */
if (bfd_get_symcount (abfd)((abfd)->symcount) <= 0)
  {
    symptr = dynsyms;
    for (counter = 0; counter < dynsym_count; counter++, symptr++)
{
 asymbol *sym = *symptr;
 asection *sec;
 int type;

 sec = bfd_get_section (sym)((sym)->section);

 /* BFD symbols are section relative.  */
 sym_value = sym->value + sec->vma;

 if (bfd_get_section_flags (abfd, sec)((sec)->flags + 0) & SEC_CODE0x020)
   {
     sym_value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1039, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1039, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_text == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1039, "sect_index_text not initialized"), -1) : objfile->
sect_index_text)]);
     type = N_TEXT4;
   }
 else if (bfd_get_section_flags (abfd, sec)((sec)->flags + 0) & SEC_DATA0x040)
   {
     sym_value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile))((((objfile->sect_index_data == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1044, "sect_index_data not initialized"), -1) : objfile->
sect_index_data) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1044, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_data == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1044, "sect_index_data not initialized"), -1) : objfile->
sect_index_data)]);
     type = N_DATA6;
   }
 else if (bfd_get_section_flags (abfd, sec)((sec)->flags + 0) & SEC_ALLOC0x001)
   {
     sym_value += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile))(((objfile)->sect_index_bss == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1049, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[(objfile)->sect_index_bss]);
     type = N_BSS8;
   }
 else
   continue;

 if (sym->flags & BSF_GLOBAL0x02)
   type |= N_EXT1;

 record_minimal_symbol ((char *) bfd_asymbol_name (sym)((sym)->name), sym_value,
		 type, objfile);
}
  }

/* Symbols from shared libraries have a dynamic relocation entry
   that points to the associated slot in the procedure linkage table.
   We make a mininal symbol table entry with type mst_solib_trampoline
   at the address in the procedure linkage table.  */
dynrel_size = bfd_get_dynamic_reloc_upper_bound (abfd)((*((abfd)->xvec->_bfd_get_dynamic_reloc_upper_bound)) (
abfd));
if (dynrel_size < 0)
  {
    do_cleanups (back_to);
    return;
  }

dynrels = (arelent **) xmalloc (dynrel_size);
make_cleanup (xfree, dynrels);

dynrel_count = bfd_canonicalize_dynamic_reloc (abfd, dynrels, dynsyms)((*((abfd)->xvec->_bfd_canonicalize_dynamic_reloc)) (abfd
, dynrels, dynsyms));
if (dynrel_count < 0)
  {
    do_cleanups (back_to);
    return;
  }

for (counter = 0, relptr = dynrels;
     counter < dynrel_count;
     counter++, relptr++)
  {
    arelent *rel = *relptr;
    CORE_ADDR address =
    rel->address + ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile))((((objfile->sect_index_data == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1090, "sect_index_data not initialized"), -1) : objfile->
sect_index_data) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1090, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_data == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1090, "sect_index_data not initialized"), -1) : objfile->
sect_index_data)]);

    switch (bfd_get_arch (abfd))
{
case bfd_arch_sparc:
 if (rel->howto->type != RELOC_JMP_SLOT)
   continue;
 break;
case bfd_arch_m68k:
 /* `16' is the type BFD produces for a jump table relocation.  */
 if (rel->howto->type != 16)
   continue;

 /* Adjust address in the jump table to point to
    the start of the bsr instruction.  */
 address -= 2;
 break;
default:
 continue;
}

    name = (char *) bfd_asymbol_name (*rel->sym_ptr_ptr)((*rel->sym_ptr_ptr)->name);
    prim_record_minimal_symbol (name, address, mst_solib_trampoline,
		  objfile);
  }

do_cleanups (back_to);
1117}

1119#ifdef SOFUN_ADDRESS_MAYBE_MISSING
1120static CORE_ADDR
1121find_stab_function_addr (char *namestring, char *filename,
	 struct objfile *objfile)
1123{
struct minimal_symbol *msym;
char *p;
int n;

p = strchr (namestring, ':');
if (p == NULL((void*)0))
  p = namestring;
n = p - namestring;
p = alloca (n + 2)__builtin_alloca(n + 2);
strncpy (p, namestring, n);
p[n] = 0;

msym = lookup_minimal_symbol (p, filename, objfile);
if (msym == NULL((void*)0))
  {
    /* Sun Fortran appends an underscore to the minimal symbol name,
       try again with an appended underscore if the minimal symbol
       was not found.  */
    p[n] = '_';
    p[n + 1] = 0;
    msym = lookup_minimal_symbol (p, filename, objfile);
  }

if (msym == NULL((void*)0) && filename != NULL((void*)0))
  {
    /* Try again without the filename. */
    p[n] = 0;
    msym = lookup_minimal_symbol (p, NULL((void*)0), objfile);
  }
if (msym == NULL((void*)0) && filename != NULL((void*)0))
  {
    /* And try again for Sun Fortran, but without the filename. */
    p[n] = '_';
    p[n + 1] = 0;
    msym = lookup_minimal_symbol (p, NULL((void*)0), objfile);
  }

return msym == NULL((void*)0) ? 0 : SYMBOL_VALUE_ADDRESS (msym)(msym)->ginfo.value.address;
1162}
1163#endif /* SOFUN_ADDRESS_MAYBE_MISSING */

1165static void
1166function_outside_compilation_unit_complaint (const char *arg1)
1167{
complaint (&symfile_complaints,
    "function `%s' appears to be defined outside of all compilation units",
    arg1);
1171}

1173/* Setup partial_symtab's describing each source file for which
 debugging information is available. */

1176static void
1177read_dbx_symtab (struct objfile *objfile)
1178{
struct external_nlist *bufp = 0;	/* =0 avoids gcc -Wall glitch */
struct internal_nlist nlist;
CORE_ADDR text_addr;
int text_size;

char *namestring;
int nsl;
int past_first_source_file = 0;
CORE_ADDR last_o_file_start = 0;
CORE_ADDR last_function_start = 0;
struct cleanup *back_to;
bfd *abfd;
int textlow_not_set;
int data_sect_index;

/* Current partial symtab */
struct partial_symtab *pst;

/* List of current psymtab's include files */
char **psymtab_include_list;
int includes_allocated;
int includes_used;

/* Index within current psymtab dependency list */
struct partial_symtab **dependency_list;
int dependencies_used, dependencies_allocated;

text_addr = DBX_TEXT_ADDR (objfile)(((objfile)->sym_stab_info)->text_addr);
text_size = DBX_TEXT_SIZE (objfile)(((objfile)->sym_stab_info)->text_size);

/* FIXME.  We probably want to change stringtab_global rather than add this
   while processing every symbol entry.  FIXME.  */
file_string_table_offset = 0;
next_file_string_table_offset = 0;

stringtab_global = DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab);

pst = (struct partial_symtab *) 0;

includes_allocated = 30;
includes_used = 0;
psymtab_include_list = (char **) alloca (includes_allocated *__builtin_alloca(includes_allocated * sizeof (char *))
			   sizeof (char *))__builtin_alloca(includes_allocated * sizeof (char *));

dependencies_allocated = 30;
dependencies_used = 0;
dependency_list =
  (struct partial_symtab **) alloca (dependencies_allocated *__builtin_alloca(dependencies_allocated * sizeof (struct partial_symtab
 *))
		       sizeof (struct partial_symtab *))__builtin_alloca(dependencies_allocated * sizeof (struct partial_symtab
 *));

/* Init bincl list */
init_bincl_list (20, objfile);
back_to = make_cleanup_free_bincl_list (objfile);

last_source_file = NULL((void*)0);

lowest_text_address = (CORE_ADDR) -1;

symfile_bfd = objfile->obfd;	/* For next_text_symbol */
abfd = objfile->obfd;
symbuf_end = symbuf_idx = 0;
next_symbol_text_func = dbx_next_symbol_text;
textlow_not_set = 1;
has_line_numbers = 0;

/* FIXME: jimb/2003-09-12: We don't apply the right section's offset
   to global and static variables.  The stab for a global or static
   variable doesn't give us any indication of which section it's in,
   so we can't tell immediately which offset in
   objfile->section_offsets we should apply to the variable's
   address.

   We could certainly find out which section contains the variable
   by looking up the variable's unrelocated address with
   find_pc_section, but that would be expensive; this is the
   function that constructs the partial symbol tables by examining
   every symbol in the entire executable, and it's
   performance-critical.  So that expense would not be welcome.  I'm
   not sure what to do about this at the moment.

   What we have done for years is to simply assume that the .data
   section's offset is appropriate for all global and static
   variables.  Recently, this was expanded to fall back to the .bss
   section's offset if there is no .data section, and then to the
   .rodata section's offset.  */
data_sect_index = objfile->sect_index_data;
if (data_sect_index == -1)
  data_sect_index = SECT_OFF_BSS (objfile)(objfile)->sect_index_bss;
if (data_sect_index == -1)
  data_sect_index = SECT_OFF_RODATA (objfile)((objfile->sect_index_rodata == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1268, "sect_index_rodata not initialized"), -1) : objfile->
sect_index_rodata);

/* If data_sect_index is still -1, that's okay.  It's perfectly fine
   for the file to have no .data, no .bss, and no .text at all, if
   it also has no global or static variables.  If it does, we will
   get an internal error from an ANOFFSET macro below when we try to
   use data_sect_index.  */

for (symnum = 0; symnum < DBX_SYMCOUNT (objfile)(((objfile)->sym_stab_info)->symcount); symnum++)
  {
    /* Get the symbol for this run and pull out some info */
    QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook
 (); };			/* allow this to be interruptable */
    if (symbuf_idx == symbuf_end)
fill_symbuf (abfd);
    bufp = &symbuf[symbuf_idx++];

    /*
     * Special case to speed up readin.
     */
    if (bfd_h_get_8 (abfd, bufp->e_type)(*(unsigned char *) (bufp->e_type) & 0xff) == N_SLINE)
{
 has_line_numbers = 1;
 continue;
}

    INTERNALIZE_SYMBOL (nlist, bufp, abfd){ (nlist).n_type = (*(unsigned char *) ((bufp)->e_type) &
 0xff); (nlist).n_strx = ((*((abfd)->xvec->bfd_h_getx32
)) ((bufp)->e_strx)); (nlist).n_desc = ((*((abfd)->xvec
->bfd_h_getx16)) ((bufp)->e_desc)); if (bfd_get_sign_extend_vma
 (abfd)) (nlist).n_value = ((*((abfd)->xvec->bfd_h_getx_signed_32
)) ((bufp)->e_value)); else (nlist).n_value = ((*((abfd)->
xvec->bfd_h_getx32)) ((bufp)->e_value)); };
    OBJSTAT (objfile, n_stabs++)(objfile -> stats.n_stabs++);

    /* Ok.  There is a lot of code duplicated in the rest of this
       switch statement (for efficiency reasons).  Since I don't
       like duplicating code, I will do my penance here, and
       describe the code which is duplicated:

       *) The assignment to namestring.
       *) The call to strchr.
       *) The addition of a partial symbol the the two partial
       symbol lists.  This last is a large section of code, so
       I've imbedded it in the following macro.
    */

    switch (nlist.n_type)
{
 char *p;
 /*
  * Standard, external, non-debugger, symbols
  */

 case N_TEXT4 | N_EXT1:
 case N_NBTEXT | N_EXT1:
 nlist.n_value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1317, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1317, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_text == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1317, "sect_index_text not initialized"), -1) : objfile->
sect_index_text)]);
 goto record_it;

 case N_DATA6 | N_EXT1:
 case N_NBDATA | N_EXT1:
 nlist.n_value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile))((((objfile->sect_index_data == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1322, "sect_index_data not initialized"), -1) : objfile->
sect_index_data) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1322, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_data == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1322, "sect_index_data not initialized"), -1) : objfile->
sect_index_data)]);
 goto record_it;

 case N_BSS8:
 case N_BSS8 | N_EXT1:
 case N_NBBSS | N_EXT1:
 case N_SETV0x1C | N_EXT1:		/* FIXME, is this in BSS? */
 nlist.n_value += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile))(((objfile)->sect_index_bss == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1329, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[(objfile)->sect_index_bss]);
 goto record_it;

 case N_ABS2 | N_EXT1:
 record_it:
 namestring = set_namestring (objfile, nlist);

 bss_ext_symbol:
 record_minimal_symbol (namestring, nlist.n_value,
		 nlist.n_type, objfile);	/* Always */
 continue;

 /* Standard, local, non-debugger, symbols */

 case N_NBTEXT:

 /* We need to be able to deal with both N_FN or N_TEXT,
    because we have no way of knowing whether the sys-supplied ld
    or GNU ld was used to make the executable.  Sequents throw
    in another wrinkle -- they renumbered N_FN.  */

 case N_FN0x1f:
 case N_FN_SEQ0x0C:
 case N_TEXT4:
 nlist.n_value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1353, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1353, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_text == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1353, "sect_index_text not initialized"), -1) : objfile->
sect_index_text)]);
 namestring = set_namestring (objfile, nlist);

 if ((namestring[0] == '-' && namestring[1] == 'l')
     || (namestring[(nsl = strlen (namestring)) - 1] == 'o'
  && namestring[nsl - 2] == '.'))
 {
   if (past_first_source_file && pst
/* The gould NP1 uses low values for .o and -l symbols
   which are not the address.  */
&& nlist.n_value >= pst->textlow)
     {
end_psymtab (pst, psymtab_include_list, includes_used,
	     symnum * symbol_size,
	     nlist.n_value > pst->texthigh
	     ? nlist.n_value : pst->texthigh,
	     dependency_list, dependencies_used, textlow_not_set);
pst = (struct partial_symtab *) 0;
includes_used = 0;
dependencies_used = 0;
     }
   else
     past_first_source_file = 1;
   last_o_file_start = nlist.n_value;
 }
 else
 goto record_it;
 continue;

 case N_DATA6:
 nlist.n_value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile))((((objfile->sect_index_data == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1383, "sect_index_data not initialized"), -1) : objfile->
sect_index_data) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1383, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_data == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1383, "sect_index_data not initialized"), -1) : objfile->
sect_index_data)]);
 goto record_it;

 case N_UNDF0 | N_EXT1:
 if (nlist.n_value != 0)
 {
   /* This is a "Fortran COMMON" symbol.  See if the target
      environment knows where it has been relocated to.  */

   CORE_ADDR reladdr;

   namestring = set_namestring (objfile, nlist);
   if (target_lookup_symbol (namestring, &reladdr)(*current_target.to_lookup_symbol) (namestring, &reladdr))
     {
continue;		/* Error in lookup; ignore symbol for now.  */
     }
   nlist.n_type ^= (N_BSS8 ^ N_UNDF0);	/* Define it as a bss-symbol */
   nlist.n_value = reladdr;
   goto bss_ext_symbol;
 }
 continue;			/* Just undefined, not COMMON */

 case N_UNDF0:
 if (processing_acc_compilation && nlist.n_strx == 1)
 {
   /* Deal with relative offsets in the string table
      used in ELF+STAB under Solaris.  If we want to use the
      n_strx field, which contains the name of the file,
      we must adjust file_string_table_offset *before* calling
      set_namestring().  */
   past_first_source_file = 1;
   file_string_table_offset = next_file_string_table_offset;
   next_file_string_table_offset =
     file_string_table_offset + nlist.n_value;
   if (next_file_string_table_offset < file_string_table_offset)
     error ("string table offset backs up at %d", symnum);
   /* FIXME -- replace error() with complaint.  */
   continue;
 }
 continue;

 /* Lots of symbol types we can just ignore.  */

 case N_ABS2:
 case N_NBDATA:
 case N_NBBSS:
 continue;

 /* Keep going . . . */

 /*
  * Special symbol types for GNU
  */
 case N_INDR0x0a:
 case N_INDR0x0a | N_EXT1:
 case N_SETA0x14:
 case N_SETA0x14 | N_EXT1:
 case N_SETT0x16:
 case N_SETT0x16 | N_EXT1:
 case N_SETD0x18:
 case N_SETD0x18 | N_EXT1:
 case N_SETB0x1A:
 case N_SETB0x1A | N_EXT1:
 case N_SETV0x1C:
 continue;

 /*
  * Debugger symbols
  */

 case N_SO:
 {
   CORE_ADDR valu;
   static int prev_so_symnum = -10;
   static int first_so_symnum;
   char *p;
   static char *dirname_nso;
   int prev_textlow_not_set;

   valu = nlist.n_value + ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1462, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1462, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_text == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1462, "sect_index_text not initialized"), -1) : objfile->
sect_index_text)]);

   prev_textlow_not_set = textlow_not_set;

1466#ifdef SOFUN_ADDRESS_MAYBE_MISSING
   /* A zero value is probably an indication for the SunPRO 3.0
      compiler. end_psymtab explicitly tests for zero, so
      don't relocate it.  */

   if (nlist.n_value == 0)
     {
textlow_not_set = 1;
valu = 0;
     }
   else
     textlow_not_set = 0;
1478#else
   textlow_not_set = 0;
1480#endif
   past_first_source_file = 1;

   if (prev_so_symnum != symnum - 1)
     {			/* Here if prev stab wasn't N_SO */
first_so_symnum = symnum;

if (pst)
  {
    end_psymtab (pst, psymtab_include_list, includes_used,
		 symnum * symbol_size,
		 valu > pst->texthigh ? valu : pst->texthigh,
		 dependency_list, dependencies_used,
		 prev_textlow_not_set);
    pst = (struct partial_symtab *) 0;
    includes_used = 0;
    dependencies_used = 0;
  }
     }

   prev_so_symnum = symnum;

   /* End the current partial symtab and start a new one */

   namestring = set_namestring (objfile, nlist);

   /* Null name means end of .o file.  Don't start a new one. */
   if (*namestring == '\000')
     continue;

   /* Some compilers (including gcc) emit a pair of initial N_SOs.
      The first one is a directory name; the second the file name.
      If pst exists, is empty, and has a filename ending in '/',
      we assume the previous N_SO was a directory name. */

   p = strrchr (namestring, '/');
   if (p && *(p + 1) == '\000')
     {
/* Save the directory name SOs locally, then save it into
   the psymtab when it's created below. */
       dirname_nso = namestring;
       continue;		
     }

   /* Some other compilers (C++ ones in particular) emit useless
      SOs for non-existant .c files.  We ignore all subsequent SOs that
      immediately follow the first.  */

   if (!pst)
     {
     pst = start_psymtab (objfile,
		   namestring, valu,
		   first_so_symnum * symbol_size,
		   objfile->global_psymbols.next,
		   objfile->static_psymbols.next);
pst->dirname = dirname_nso;
dirname_nso = NULL((void*)0);
     }
   continue;
 }

 case N_BINCL:
 {
   enum language tmp_language;
   /* Add this bincl to the bincl_list for future EXCLs.  No
      need to save the string; it'll be around until
      read_dbx_symtab function returns */

   namestring = set_namestring (objfile, nlist);
   tmp_language = deduce_language_from_filename (namestring);

   /* Only change the psymtab's language if we've learned
      something useful (eg. tmp_language is not language_unknown).
      In addition, to match what start_subfile does, never change
      from C++ to C.  */
   if (tmp_language != language_unknown
&& (tmp_language != language_c
    || psymtab_language != language_cplus))
   psymtab_language = tmp_language;

   if (pst == NULL((void*)0))
   {
     /* FIXME: we should not get here without a PST to work on.
 Attempt to recover.  */
     complaint (&symfile_complaints,
	 "N_BINCL %s not in entries for any file, at symtab pos %d",
	 namestring, symnum);
     continue;
   }
   add_bincl_to_list (pst, namestring, nlist.n_value);

   /* Mark down an include file in the current psymtab */

   goto record_include_file;
 }

 case N_SOL:
 {
   enum language tmp_language;
   /* Mark down an include file in the current psymtab */

   namestring = set_namestring (objfile, nlist);
   tmp_language = deduce_language_from_filename (namestring);

   /* Only change the psymtab's language if we've learned
      something useful (eg. tmp_language is not language_unknown).
      In addition, to match what start_subfile does, never change
      from C++ to C.  */
   if (tmp_language != language_unknown
&& (tmp_language != language_c
    || psymtab_language != language_cplus))
   psymtab_language = tmp_language;

   /* In C++, one may expect the same filename to come round many
      times, when code is coming alternately from the main file
      and from inline functions in other files. So I check to see
      if this is a file we've seen before -- either the main
      source file, or a previously included file.

      This seems to be a lot of time to be spending on N_SOL, but
      things like "break c-exp.y:435" need to work (I
      suppose the psymtab_include_list could be hashed or put
      in a binary tree, if profiling shows this is a major hog).  */
   if (pst && strcmp (namestring, pst->filename) == 0)
   continue;
   {
     int i;
     for (i = 0; i < includes_used; i++)
if (strcmp (namestring, psymtab_include_list[i]) == 0)
  {
    i = -1;
    break;
  }
     if (i == -1)
continue;
   }

   record_include_file:

   psymtab_include_list[includes_used++] = namestring;
   if (includes_used >= includes_allocated)
   {
     char **orig = psymtab_include_list;

     psymtab_include_list = (char **)
alloca ((includes_allocated *= 2) *__builtin_alloca((includes_allocated *= 2) * sizeof (char *))
	sizeof (char *))__builtin_alloca((includes_allocated *= 2) * sizeof (char *));
     memcpy (psymtab_include_list, orig,
      includes_used * sizeof (char *));
   }
   continue;
 }
 case N_LSYM:			/* Typedef or automatic variable. */
 case N_STSYM:		/* Data seg var -- static  */
 case N_LCSYM:		/* BSS      "  */
 case N_ROSYM:		/* Read-only data seg var -- static.  */
 case N_NBSTS:		/* Gould nobase.  */
 case N_NBLCS:		/* symbols.  */
 case N_FUN:
 case N_GSYM:			/* Global (extern) variable; can be
			   data or bss (sigh FIXME).  */

 /* Following may probably be ignored; I'll leave them here
    for now (until I do Pascal and Modula 2 extensions).  */

 case N_PC:			/* I may or may not need this; I
			   suspect not.  */
 case N_M2C:			/* I suspect that I can ignore this here. */
 case N_SCOPE:		/* Same.   */

 namestring = set_namestring (objfile, nlist);

 /* See if this is an end of function stab.  */
 if (pst && nlist.n_type == N_FUN && *namestring == '\000')
 {
   CORE_ADDR valu;

   /* It's value is the size (in bytes) of the function for
      function relative stabs, or the address of the function's
      end for old style stabs.  */
   valu = nlist.n_value + last_function_start;
   if (pst->texthigh == 0 || valu > pst->texthigh)
     pst->texthigh = valu;
   break;
 }

 p = (char *) strchr (namestring, ':');
 if (!p)
 continue;			/* Not a debugging symbol.   */



 /* Main processing section for debugging symbols which
    the initial read through the symbol tables needs to worry
    about.  If we reach this point, the symbol which we are
    considering is definitely one we are interested in.
    p must also contain the (valid) index into the namestring
    which indicates the debugging type symbol.  */

 switch (p[1])
 {
 case 'S':
   nlist.n_value += ANOFFSET (objfile->section_offsets, data_sect_index)((data_sect_index == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1682, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[data_sect_index]);
1683#ifdef STATIC_TRANSFORM_NAME
   namestring = STATIC_TRANSFORM_NAME (namestring);
1685#endif
   add_psymbol_to_list (namestring, p - namestring,
		 VAR_DOMAIN, LOC_STATIC,
		 &objfile->static_psymbols,
		 0, nlist.n_value,
		 psymtab_language, objfile);
   continue;
 case 'G':
   nlist.n_value += ANOFFSET (objfile->section_offsets, data_sect_index)((data_sect_index == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1693, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[data_sect_index]);
   /* The addresses in these entries are reported to be
      wrong.  See the code that reads 'G's for symtabs. */
   add_psymbol_to_list (namestring, p - namestring,
		 VAR_DOMAIN, LOC_STATIC,
		 &objfile->global_psymbols,
		 0, nlist.n_value,
		 psymtab_language, objfile);
   continue;

 case 'T':
   /* When a 'T' entry is defining an anonymous enum, it
      may have a name which is the empty string, or a
      single space.  Since they're not really defining a
      symbol, those shouldn't go in the partial symbol
      table.  We do pick up the elements of such enums at
      'check_enum:', below.  */
   if (p >= namestring + 2
|| (p == namestring + 1
    && namestring[0] != ' '))
     {
add_psymbol_to_list (namestring, p - namestring,
		     STRUCT_DOMAIN, LOC_TYPEDEF,
		     &objfile->static_psymbols,
		     nlist.n_value, 0,
		     psymtab_language, objfile);
if (p[2] == 't')
  {
    /* Also a typedef with the same name.  */
    add_psymbol_to_list (namestring, p - namestring,
			 VAR_DOMAIN, LOC_TYPEDEF,
			 &objfile->static_psymbols,
			 nlist.n_value, 0,
			 psymtab_language, objfile);
    p += 1;
  }
     }
   goto check_enum;
 case 't':
   if (p != namestring)	/* a name is there, not just :T... */
     {
add_psymbol_to_list (namestring, p - namestring,
		     VAR_DOMAIN, LOC_TYPEDEF,
		     &objfile->static_psymbols,
		     nlist.n_value, 0,
		     psymtab_language, objfile);
     }
 check_enum:
   /* If this is an enumerated type, we need to
      add all the enum constants to the partial symbol
      table.  This does not cover enums without names, e.g.
      "enum {a, b} c;" in C, but fortunately those are
      rare.  There is no way for GDB to find those from the
      enum type without spending too much time on it.  Thus
      to solve this problem, the compiler needs to put out the
      enum in a nameless type.  GCC2 does this.  */

   /* We are looking for something of the form
      <name> ":" ("t" | "T") [<number> "="] "e"
      {<constant> ":" <value> ","} ";".  */

   /* Skip over the colon and the 't' or 'T'.  */
   p += 2;
   /* This type may be given a number.  Also, numbers can come
      in pairs like (0,26).  Skip over it.  */
   while ((*p >= '0' && *p <= '9')
   || *p == '(' || *p == ',' || *p == ')'
   || *p == '=')
     p++;

   if (*p++ == 'e')
     {
/* The aix4 compiler emits extra crud before the members.  */
if (*p == '-')
  {
    /* Skip over the type (?).  */
    while (*p != ':')
      p++;

    /* Skip over the colon.  */
    p++;
  }

/* We have found an enumerated type.  */
/* According to comments in read_enum_type
   a comma could end it instead of a semicolon.
   I don't know where that happens.
   Accept either.  */
while (*p && *p != ';' && *p != ',')
  {
    char *q;

    /* Check for and handle cretinous dbx symbol name
       continuation!  */
    if (*p == '\\' || (*p == '?' && p[1] == '\0'))
      p = next_symbol_text (objfile)(*next_symbol_text_func)(objfile);

    /* Point to the character after the name
       of the enum constant.  */
    for (q = p; *q && *q != ':'; q++)
      ;
    /* Note that the value doesn't matter for
       enum constants in psymtabs, just in symtabs.  */
    add_psymbol_to_list (p, q - p,
			 VAR_DOMAIN, LOC_CONST,
			 &objfile->static_psymbols, 0,
			 0, psymtab_language, objfile);
    /* Point past the name.  */
    p = q;
    /* Skip over the value.  */
    while (*p && *p != ',')
      p++;
    /* Advance past the comma.  */
    if (*p)
      p++;
  }
     }
   continue;
 case 'c':
   /* Constant, e.g. from "const" in Pascal.  */
   add_psymbol_to_list (namestring, p - namestring,
		 VAR_DOMAIN, LOC_CONST,
		 &objfile->static_psymbols, nlist.n_value,
		 0, psymtab_language, objfile);
   continue;

 case 'f':
   if (! pst)
     {
int name_len = p - namestring;
char *name = xmalloc (name_len + 1);
memcpy (name, namestring, name_len);
name[name_len] = '\0';
function_outside_compilation_unit_complaint (name);
xfree (name);
     }
   nlist.n_value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1829, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1829, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_text == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1829, "sect_index_text not initialized"), -1) : objfile->
sect_index_text)]);
   /* Kludges for ELF/STABS with Sun ACC */
   last_function_name = namestring;
1832#ifdef SOFUN_ADDRESS_MAYBE_MISSING
   /* Do not fix textlow==0 for .o or NLM files, as 0 is a legit
      value for the bottom of the text seg in those cases. */
   if (nlist.n_value == ANOFFSET (objfile->section_offsets,((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1836, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1836, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_text == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1836, "sect_index_text not initialized"), -1) : objfile->
sect_index_text)]) 
			   SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1836, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1836, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_text == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1836, "sect_index_text not initialized"), -1) : objfile->
sect_index_text)]))
     {
CORE_ADDR minsym_valu = 
  find_stab_function_addr (namestring, pst->filename, objfile);
/* find_stab_function_addr will return 0 if the minimal
   symbol wasn't found.  (Unfortunately, this might also
   be a valid address.)  Anyway, if it *does* return 0,
   it is likely that the value was set correctly to begin
   with... */
if (minsym_valu != 0)
  nlist.n_value = minsym_valu;
     }
   if (pst && textlow_not_set)
     {
pst->textlow = nlist.n_value;
textlow_not_set = 0;
     }
1853#endif
   /* End kludge.  */

   /* Keep track of the start of the last function so we
      can handle end of function symbols.  */
   last_function_start = nlist.n_value;

   /* In reordered executables this function may lie outside
      the bounds created by N_SO symbols.  If that's the case
      use the address of this function as the low bound for
      the partial symbol table.  */
   if (pst
&& (textlow_not_set
    || (nlist.n_value < pst->textlow
	&& (nlist.n_value
	    != ANOFFSET (objfile->section_offsets,((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1869, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1869, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_text == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1869, "sect_index_text not initialized"), -1) : objfile->
sect_index_text)])
			 SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1869, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1869, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_text == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1869, "sect_index_text not initialized"), -1) : objfile->
sect_index_text)])))))
     {
pst->textlow = nlist.n_value;
textlow_not_set = 0;
     }
   add_psymbol_to_list (namestring, p - namestring,
		 VAR_DOMAIN, LOC_BLOCK,
		 &objfile->static_psymbols,
		 0, nlist.n_value,
		 psymtab_language, objfile);
   continue;

   /* Global functions were ignored here, but now they
      are put into the global psymtab like one would expect.
      They're also in the minimal symbol table.  */
 case 'F':
   if (! pst)
     {
int name_len = p - namestring;
char *name = xmalloc (name_len + 1);
memcpy (name, namestring, name_len);
name[name_len] = '\0';
function_outside_compilation_unit_complaint (name);
xfree (name);
     }
   nlist.n_value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1894, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1894, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_text == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1894, "sect_index_text not initialized"), -1) : objfile->
sect_index_text)]);
   /* Kludges for ELF/STABS with Sun ACC */
   last_function_name = namestring;
1897#ifdef SOFUN_ADDRESS_MAYBE_MISSING
   /* Do not fix textlow==0 for .o or NLM files, as 0 is a legit
      value for the bottom of the text seg in those cases. */
   if (nlist.n_value == ANOFFSET (objfile->section_offsets,((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1901, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1901, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_text == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1901, "sect_index_text not initialized"), -1) : objfile->
sect_index_text)]) 
			   SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1901, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1901, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_text == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1901, "sect_index_text not initialized"), -1) : objfile->
sect_index_text)]))
     {
CORE_ADDR minsym_valu = 
  find_stab_function_addr (namestring, pst->filename, objfile);
/* find_stab_function_addr will return 0 if the minimal
   symbol wasn't found.  (Unfortunately, this might also
   be a valid address.)  Anyway, if it *does* return 0,
   it is likely that the value was set correctly to begin
   with... */
if (minsym_valu != 0)
  nlist.n_value = minsym_valu;
     }
   if (pst && textlow_not_set)
     {
pst->textlow = nlist.n_value;
textlow_not_set = 0;
     }
1918#endif
   /* End kludge.  */

   /* Keep track of the start of the last function so we
      can handle end of function symbols.  */
   last_function_start = nlist.n_value;

   /* In reordered executables this function may lie outside
      the bounds created by N_SO symbols.  If that's the case
      use the address of this function as the low bound for
      the partial symbol table.  */
   if (pst
&& (textlow_not_set
    || (nlist.n_value < pst->textlow
	&& (nlist.n_value
	    != ANOFFSET (objfile->section_offsets,((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1934, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1934, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_text == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1934, "sect_index_text not initialized"), -1) : objfile->
sect_index_text)])
			 SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1934, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1934, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_text == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 1934, "sect_index_text not initialized"), -1) : objfile->
sect_index_text)])))))
     {
pst->textlow = nlist.n_value;
textlow_not_set = 0;
     }
   add_psymbol_to_list (namestring, p - namestring,
		 VAR_DOMAIN, LOC_BLOCK,
		 &objfile->global_psymbols,
		 0, nlist.n_value,
		 psymtab_language, objfile);
   continue;

   /* Two things show up here (hopefully); static symbols of
      local scope (static used inside braces) or extensions
      of structure symbols.  We can ignore both.  */
 case 'V':
 case '(':
 case '0':
 case '1':
 case '2':
 case '3':
 case '4':
 case '5':
 case '6':
 case '7':
 case '8':
 case '9':
 case '-':
 case '#':		/* for symbol identification (used in live ranges) */
   continue;

 case ':':
   /* It is a C++ nested symbol.  We don't need to record it
      (I don't think); if we try to look up foo::bar::baz,
      then symbols for the symtab containing foo should get
      read in, I think.  */
   /* Someone says sun cc puts out symbols like
      /foo/baz/maclib::/usr/local/bin/maclib,
      which would get here with a symbol type of ':'.  */
   continue;

 default:
   /* Unexpected symbol descriptor.  The second and subsequent stabs
      of a continued stab can show up here.  The question is
      whether they ever can mimic a normal stab--it would be
      nice if not, since we certainly don't want to spend the
      time searching to the end of every string looking for
      a backslash.  */

   complaint (&symfile_complaints, "unknown symbol descriptor `%c'",
       p[1]);

   /* Ignore it; perhaps it is an extension that we don't
      know about.  */
   continue;
 }

 case N_EXCL:

 namestring = set_namestring (objfile, nlist);

 /* Find the corresponding bincl and mark that psymtab on the
    psymtab dependency list */
 {
   struct partial_symtab *needed_pst =
     find_corresponding_bincl_psymtab (namestring, nlist.n_value);

   /* If this include file was defined earlier in this file,
      leave it alone.  */
   if (needed_pst == pst)
     continue;

   if (needed_pst)
     {
int i;
int found = 0;

for (i = 0; i < dependencies_used; i++)
  if (dependency_list[i] == needed_pst)
    {
      found = 1;
      break;
    }

/* If it's already in the list, skip the rest.  */
if (found)
  continue;

dependency_list[dependencies_used++] = needed_pst;
if (dependencies_used >= dependencies_allocated)
  {
    struct partial_symtab **orig = dependency_list;
    dependency_list =
      (struct partial_symtab **)
      alloca ((dependencies_allocated *= 2)__builtin_alloca((dependencies_allocated *= 2) * sizeof (struct
 partial_symtab *))
	      * sizeof (struct partial_symtab *))__builtin_alloca((dependencies_allocated *= 2) * sizeof (struct
 partial_symtab *));
    memcpy (dependency_list, orig,
	    (dependencies_used
	     * sizeof (struct partial_symtab *)));
2033#ifdef DEBUG_INFO
    fprintf_unfiltered (gdb_stderr, "Had to reallocate dependency list.\n");
    fprintf_unfiltered (gdb_stderr, "New dependencies allocated: %d\n",
			dependencies_allocated);
2037#endif
  }
     }
 }
 continue;

 case N_ENDM:
2044#ifdef SOFUN_ADDRESS_MAYBE_MISSING
 /* Solaris 2 end of module, finish current partial symbol table.
    end_psymtab will set pst->texthigh to the proper value, which
    is necessary if a module compiled without debugging info
    follows this module.  */
 if (pst)
 {
   end_psymtab (pst, psymtab_include_list, includes_used,
	 symnum * symbol_size,
	 (CORE_ADDR) 0,
	 dependency_list, dependencies_used, textlow_not_set);
   pst = (struct partial_symtab *) 0;
   includes_used = 0;
   dependencies_used = 0;
 }
2059#endif
 continue;

 case N_RBRAC:
2063#ifdef HANDLE_RBRAC
 HANDLE_RBRAC (nlist.n_value);
 continue;
2066#endif
 case N_EINCL:
 case N_DSLINE:
 case N_BSLINE:
 case N_SSYM:			/* Claim: Structure or union element.
			   Hopefully, I can ignore this.  */
 case N_ENTRY:		/* Alternate entry point; can ignore. */
 case N_MAIN:			/* Can definitely ignore this.   */
 case N_CATCH:		/* These are GNU C++ extensions */
 case N_EHDECL:		/* that can safely be ignored here. */
 case N_LENG:
 case N_BCOMM:
 case N_ECOMM:
 case N_ECOML:
 case N_FNAME:
 case N_SLINE:
 case N_RSYM:
 case N_PSYM:
 case N_LBRAC:
 case N_NSYMS:		/* Ultrix 4.0: symbol count */
 case N_DEFD:			/* GNU Modula-2 */
 case N_ALIAS:		/* SunPro F77: alias name, ignore for now.  */

 case N_OBJ:			/* useless types from Solaris */
 case N_OPT:
 case N_PATCH:
 /* These symbols aren't interesting; don't worry about them */

 continue;

 default:
 /* If we haven't found it yet, ignore it.  It's probably some
    new type we don't know about yet.  */
 unknown_symtype_complaint (hex_string (nlist.n_type));
 continue;
}
  }

/* If there's stuff to be cleaned up, clean it up.  */
if (pst)
  {
    /* Don't set pst->texthigh lower than it already is.  */
    CORE_ADDR text_end =
(lowest_text_address == (CORE_ADDR) -1
? (text_addr + ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 2110, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 2110, "Section index is uninitialized"), -1) : objfile->
section_offsets->offsets[((objfile->sect_index_text == -
1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 2110, "sect_index_text not initialized"), -1) : objfile->
sect_index_text)]))
: lowest_text_address)
+ text_size;

    end_psymtab (pst, psymtab_include_list, includes_used,
   symnum * symbol_size,
   text_end > pst->texthigh ? text_end : pst->texthigh,
   dependency_list, dependencies_used, textlow_not_set);
  }

do_cleanups (back_to);
2121}

2123/* Allocate and partially fill a partial symtab.  It will be
 completely filled at the end of the symbol list.

 SYMFILE_NAME is the name of the symbol-file we are reading from, and ADDR
 is the address relative to which its symbols are (incremental) or 0
 (normal). */


2131static struct partial_symtab *
2132start_psymtab (struct objfile *objfile, char *filename, CORE_ADDR textlow,
      int ldsymoff, struct partial_symbol **global_syms,
      struct partial_symbol **static_syms)
2135{
struct partial_symtab *result =
start_psymtab_common (objfile, objfile->section_offsets,
	filename, textlow, global_syms, static_syms);

result->read_symtab_private = (char *)
  obstack_alloc (&objfile->objfile_obstack, sizeof (struct symloc))__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
(sizeof (struct symloc))); if (__o->chunk_limit - __o->
next_free < __len) _obstack_newchunk (__o, __len); ((__o)->
next_free += (__len)); (void) 0; }); __extension__ ({ struct obstack
 *__o1 = (__h); void *value; value = (void *) __o1->object_base
; if (__o1->next_free == value) __o1->maybe_empty_object
 = 1; __o1->next_free = (((((__o1->next_free) - (char *
) 0)+__o1->alignment_mask) & ~ (__o1->alignment_mask
)) + (char *) 0); if (__o1->next_free - (char *)__o1->chunk
 > __o1->chunk_limit - (char *)__o1->chunk) __o1->
next_free = __o1->chunk_limit; __o1->object_base = __o1
->next_free; value; }); });
LDSYMOFF (result)(((struct symloc *)((result)->read_symtab_private))->ldsymoff
) = ldsymoff;
result->read_symtab = dbx_psymtab_to_symtab;
SYMBOL_SIZE (result)(((struct symloc *)((result)->read_symtab_private))->symbol_size
) = symbol_size;
SYMBOL_OFFSET (result)(((struct symloc *)((result)->read_symtab_private))->symbol_offset
) = symbol_table_offset;
STRING_OFFSET (result)(((struct symloc *)((result)->read_symtab_private))->string_offset
) = string_table_offset;
FILE_STRING_OFFSET (result)(((struct symloc *)((result)->read_symtab_private))->file_string_offset
) = file_string_table_offset;

/* If we're handling an ELF file, drag some section-relocation info
   for this source file out of the ELF symbol table, to compensate for
   Sun brain death.  This replaces the section_offsets in this psymtab,
   if successful.  */
elfstab_offset_sections (objfile, result);

/* Deduce the source language from the filename for this psymtab. */
psymtab_language = deduce_language_from_filename (filename);

return result;
2159}

2161/* Close off the current usage of PST.  
 Returns PST or NULL if the partial symtab was empty and thrown away.

 FIXME:  List variables and peculiarities of same.  */

2166struct partial_symtab *
2167end_psymtab (struct partial_symtab *pst, char **include_list, int num_includes,
    int capping_symbol_offset, CORE_ADDR capping_text,
    struct partial_symtab **dependency_list, int number_dependencies,
    int textlow_not_set)
2171{
int i;
struct objfile *objfile = pst->objfile;

if (capping_symbol_offset != -1)
  LDSYMLEN (pst)(((struct symloc *)((pst)->read_symtab_private))->ldsymlen
) = capping_symbol_offset - LDSYMOFF (pst)(((struct symloc *)((pst)->read_symtab_private))->ldsymoff
);
pst->texthigh = capping_text;

2179#ifdef SOFUN_ADDRESS_MAYBE_MISSING
/* Under Solaris, the N_SO symbols always have a value of 0,
   instead of the usual address of the .o file.  Therefore,
   we have to do some tricks to fill in texthigh and textlow.
   The first trick is: if we see a static
   or global function, and the textlow for the current pst
   is not set (ie: textlow_not_set), then we use that function's
   address for the textlow of the pst.  */

/* Now, to fill in texthigh, we remember the last function seen
   in the .o file.  Also, there's a hack in
   bfd/elf.c and gdb/elfread.c to pass the ELF st_size field
   to here via the misc_info field.  Therefore, we can fill in
   a reliable texthigh by taking the address plus size of the
   last function in the file.  */

if (pst->texthigh == 0 && last_function_name)
  {
    char *p;
    int n;
    struct minimal_symbol *minsym;

    p = strchr (last_function_name, ':');
    if (p == NULL((void*)0))
p = last_function_name;
    n = p - last_function_name;
    p = alloca (n + 2)__builtin_alloca(n + 2);
    strncpy (p, last_function_name, n);
    p[n] = 0;

    minsym = lookup_minimal_symbol (p, pst->filename, objfile);
    if (minsym == NULL((void*)0))
{
 /* Sun Fortran appends an underscore to the minimal symbol name,
    try again with an appended underscore if the minimal symbol
    was not found.  */
 p[n] = '_';
 p[n + 1] = 0;
 minsym = lookup_minimal_symbol (p, pst->filename, objfile);
}

    if (minsym)
pst->texthigh = SYMBOL_VALUE_ADDRESS (minsym)(minsym)->ginfo.value.address + MSYMBOL_SIZE (minsym)(minsym)->size;

    last_function_name = NULL((void*)0);
  }

/* this test will be true if the last .o file is only data */
if (textlow_not_set)
  pst->textlow = pst->texthigh;
else
  {
    struct partial_symtab *p1;

    /* If we know our own starting text address, then walk through all other
       psymtabs for this objfile, and if any didn't know their ending text
       address, set it to our starting address.  Take care to not set our
       own ending address to our starting address, nor to set addresses on
       `dependency' files that have both textlow and texthigh zero.  */

    ALL_OBJFILE_PSYMTABS (objfile, p1)for ((p1) = (objfile) -> psymtabs; (p1) != ((void*)0); (p1
) = (p1) -> next)
    {
if (p1->texthigh == 0 && p1->textlow != 0 && p1 != pst)
 {
   p1->texthigh = pst->textlow;
   /* if this file has only data, then make textlow match texthigh */
   if (p1->textlow == 0)
     p1->textlow = p1->texthigh;
 }
    }
  }

/* End of kludge for patching Solaris textlow and texthigh.  */
2252#endif /* SOFUN_ADDRESS_MAYBE_MISSING.  */

pst->n_global_syms =
  objfile->global_psymbols.next - (objfile->global_psymbols.list + pst->globals_offset);
pst->n_static_syms =
  objfile->static_psymbols.next - (objfile->static_psymbols.list + pst->statics_offset);

pst->number_of_dependencies = number_dependencies;
if (number_dependencies)
  {
    pst->dependencies = (struct partial_symtab **)
obstack_alloc (&objfile->objfile_obstack,__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
(number_dependencies * sizeof (struct partial_symtab *))); if
 (__o->chunk_limit - __o->next_free < __len) _obstack_newchunk
 (__o, __len); ((__o)->next_free += (__len)); (void) 0; })
; __extension__ ({ struct obstack *__o1 = (__h); void *value;
 value = (void *) __o1->object_base; if (__o1->next_free
 == value) __o1->maybe_empty_object = 1; __o1->next_free
 = (((((__o1->next_free) - (char *) 0)+__o1->alignment_mask
) & ~ (__o1->alignment_mask)) + (char *) 0); if (__o1->
next_free - (char *)__o1->chunk > __o1->chunk_limit -
 (char *)__o1->chunk) __o1->next_free = __o1->chunk_limit
; __o1->object_base = __o1->next_free; value; }); })
    number_dependencies * sizeof (struct partial_symtab *))__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
(number_dependencies * sizeof (struct partial_symtab *))); if
 (__o->chunk_limit - __o->next_free < __len) _obstack_newchunk
 (__o, __len); ((__o)->next_free += (__len)); (void) 0; })
; __extension__ ({ struct obstack *__o1 = (__h); void *value;
 value = (void *) __o1->object_base; if (__o1->next_free
 == value) __o1->maybe_empty_object = 1; __o1->next_free
 = (((((__o1->next_free) - (char *) 0)+__o1->alignment_mask
) & ~ (__o1->alignment_mask)) + (char *) 0); if (__o1->
next_free - (char *)__o1->chunk > __o1->chunk_limit -
 (char *)__o1->chunk) __o1->next_free = __o1->chunk_limit
; __o1->object_base = __o1->next_free; value; }); });
    memcpy (pst->dependencies, dependency_list,
     number_dependencies * sizeof (struct partial_symtab *));
  }
else
  pst->dependencies = 0;

for (i = 0; i < num_includes; i++)
  {
    struct partial_symtab *subpst =
    allocate_psymtab (include_list[i], objfile);

    /* Copy the sesction_offsets array from the main psymtab. */
    subpst->section_offsets = pst->section_offsets;
    subpst->read_symtab_private =
(char *) obstack_alloc (&objfile->objfile_obstack,__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
(sizeof (struct symloc))); if (__o->chunk_limit - __o->
next_free < __len) _obstack_newchunk (__o, __len); ((__o)->
next_free += (__len)); (void) 0; }); __extension__ ({ struct obstack
 *__o1 = (__h); void *value; value = (void *) __o1->object_base
; if (__o1->next_free == value) __o1->maybe_empty_object
 = 1; __o1->next_free = (((((__o1->next_free) - (char *
) 0)+__o1->alignment_mask) & ~ (__o1->alignment_mask
)) + (char *) 0); if (__o1->next_free - (char *)__o1->chunk
 > __o1->chunk_limit - (char *)__o1->chunk) __o1->
next_free = __o1->chunk_limit; __o1->object_base = __o1
->next_free; value; }); })
		sizeof (struct symloc))__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
(sizeof (struct symloc))); if (__o->chunk_limit - __o->
next_free < __len) _obstack_newchunk (__o, __len); ((__o)->
next_free += (__len)); (void) 0; }); __extension__ ({ struct obstack
 *__o1 = (__h); void *value; value = (void *) __o1->object_base
; if (__o1->next_free == value) __o1->maybe_empty_object
 = 1; __o1->next_free = (((((__o1->next_free) - (char *
) 0)+__o1->alignment_mask) & ~ (__o1->alignment_mask
)) + (char *) 0); if (__o1->next_free - (char *)__o1->chunk
 > __o1->chunk_limit - (char *)__o1->chunk) __o1->
next_free = __o1->chunk_limit; __o1->object_base = __o1
->next_free; value; }); });
    LDSYMOFF (subpst)(((struct symloc *)((subpst)->read_symtab_private))->ldsymoff
) =
LDSYMLEN (subpst)(((struct symloc *)((subpst)->read_symtab_private))->ldsymlen
) =
subpst->textlow =
subpst->texthigh = 0;

    /* We could save slight bits of space by only making one of these,
       shared by the entire set of include files.  FIXME-someday.  */
    subpst->dependencies = (struct partial_symtab **)
obstack_alloc (&objfile->objfile_obstack,__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
(sizeof (struct partial_symtab *))); if (__o->chunk_limit -
 __o->next_free < __len) _obstack_newchunk (__o, __len)
; ((__o)->next_free += (__len)); (void) 0; }); __extension__
 ({ struct obstack *__o1 = (__h); void *value; value = (void *
) __o1->object_base; if (__o1->next_free == value) __o1
->maybe_empty_object = 1; __o1->next_free = (((((__o1->
next_free) - (char *) 0)+__o1->alignment_mask) & ~ (__o1
->alignment_mask)) + (char *) 0); if (__o1->next_free -
 (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1
->chunk) __o1->next_free = __o1->chunk_limit; __o1->
object_base = __o1->next_free; value; }); })
       sizeof (struct partial_symtab *))__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
(sizeof (struct partial_symtab *))); if (__o->chunk_limit -
 __o->next_free < __len) _obstack_newchunk (__o, __len)
; ((__o)->next_free += (__len)); (void) 0; }); __extension__
 ({ struct obstack *__o1 = (__h); void *value; value = (void *
) __o1->object_base; if (__o1->next_free == value) __o1
->maybe_empty_object = 1; __o1->next_free = (((((__o1->
next_free) - (char *) 0)+__o1->alignment_mask) & ~ (__o1
->alignment_mask)) + (char *) 0); if (__o1->next_free -
 (char *)__o1->chunk > __o1->chunk_limit - (char *)__o1
->chunk) __o1->next_free = __o1->chunk_limit; __o1->
object_base = __o1->next_free; value; }); });
    subpst->dependencies[0] = pst;
    subpst->number_of_dependencies = 1;

    subpst->globals_offset =
subpst->n_global_syms =
subpst->statics_offset =
subpst->n_static_syms = 0;

    subpst->readin = 0;
    subpst->symtab = 0;
    subpst->read_symtab = pst->read_symtab;
  }

sort_pst_symbols (pst);

/* If there is already a psymtab or symtab for a file of this name, remove it.
   (If there is a symtab, more drastic things also happen.)
   This happens in VxWorks.  */
free_named_symtabs (pst->filename);

if (num_includes == 0
    && number_dependencies == 0
    && pst->n_global_syms == 0
    && pst->n_static_syms == 0
    && has_line_numbers == 0)
  {
    /* Throw away this psymtab, it's empty.  We can't deallocate it, since
       it is on the obstack, but we can forget to chain it on the list.  */
    /* Empty psymtabs happen as a result of header files which don't have
       any symbols in them.  There can be a lot of them.  But this check
       is wrong, in that a psymtab with N_SLINE entries but nothing else
       is not empty, but we don't realize that.  Fixing that without slowing
       things down might be tricky.  */

    discard_psymtab (pst);

    /* Indicate that psymtab was thrown away.  */
    pst = (struct partial_symtab *) NULL((void*)0);
  }
return pst;
2331}
2332
2333static void
2334dbx_psymtab_to_symtab_1 (struct partial_symtab *pst)
2335{
struct cleanup *old_chain;
int i;

if (!pst)
  return;

if (pst->readin)
  {
    fprintf_unfiltered (gdb_stderr, "Psymtab for %s already read in.  Shouldn't happen.\n",
	  pst->filename);
    return;
  }

/* Read in all partial symtabs on which this one is dependent */
for (i = 0; i < pst->number_of_dependencies; i++)
  if (!pst->dependencies[i]->readin)
    {
/* Inform about additional files that need to be read in.  */
if (info_verbose)
 {
   fputs_filtered (" ", gdb_stdout);
   wrap_here ("");
   fputs_filtered ("and ", gdb_stdout);
   wrap_here ("");
   printf_filtered ("%s...", pst->dependencies[i]->filename);
   wrap_here ("");	/* Flush output */
   gdb_flush (gdb_stdout);
 }
dbx_psymtab_to_symtab_1 (pst->dependencies[i]);
    }

if (LDSYMLEN (pst)(((struct symloc *)((pst)->read_symtab_private))->ldsymlen
))		/* Otherwise it's a dummy */
  {
    /* Init stuff necessary for reading in symbols */
    stabsread_init ();
    buildsym_init ();
    old_chain = make_cleanup (really_free_pendings, 0);
    file_string_table_offset = FILE_STRING_OFFSET (pst)(((struct symloc *)((pst)->read_symtab_private))->file_string_offset
);
    symbol_size = SYMBOL_SIZE (pst)(((struct symloc *)((pst)->read_symtab_private))->symbol_size
);

    /* Read in this file's symbols */
    bfd_seek (pst->objfile->obfd, SYMBOL_OFFSET (pst)(((struct symloc *)((pst)->read_symtab_private))->symbol_offset
), SEEK_SET0);
    read_ofile_symtab (pst);

    do_cleanups (old_chain);
  }

pst->readin = 1;
2384}

2386/* Read in all of the symbols for a given psymtab for real.
 Be verbose about it if the user wants that.  */

2389static void
2390dbx_psymtab_to_symtab (struct partial_symtab *pst)
2391{
bfd *sym_bfd;
struct cleanup *back_to = NULL((void*)0);

if (!pst)
  return;

if (pst->readin)
  {
    fprintf_unfiltered (gdb_stderr, "Psymtab for %s already read in.  Shouldn't happen.\n",
	  pst->filename);
    return;
  }

if (LDSYMLEN (pst)(((struct symloc *)((pst)->read_symtab_private))->ldsymlen
) || pst->number_of_dependencies)
  {
    /* Print the message now, before reading the string table,
       to avoid disconcerting pauses.  */
    if (info_verbose)
{
 printf_filtered ("Reading in symbols for %s...", pst->filename);
 gdb_flush (gdb_stdout);
}

    sym_bfd = pst->objfile->obfd;

    next_symbol_text_func = dbx_next_symbol_text;

    if (DBX_STAB_SECTION (pst->objfile)(((pst->objfile)->sym_stab_info)->stab_section))
{
 stabs_data
   = symfile_relocate_debug_section (pst->objfile->obfd,
			      DBX_STAB_SECTION (pst->objfile)(((pst->objfile)->sym_stab_info)->stab_section),
			      NULL((void*)0));
 if (stabs_data)
   back_to = make_cleanup (free_current_contents, (void *) &stabs_data);
}

    dbx_psymtab_to_symtab_1 (pst);

    if (back_to)
do_cleanups (back_to);

    /* Match with global symbols.  This only needs to be done once,
       after all of the symtabs and dependencies have been read in.   */
    scan_file_globals (pst->objfile);

    /* Finish up the debug error message.  */
    if (info_verbose)
printf_filtered ("done.\n");
  }
2442}

2444/* Read in a defined section of a specific object file's symbols. */

2446static void
2447read_ofile_symtab (struct partial_symtab *pst)
2448{
char *namestring;
struct external_nlist *bufp;
struct internal_nlist nlist;
unsigned char type;
unsigned max_symnum;
bfd *abfd;
struct objfile *objfile;
int sym_offset;		/* Offset to start of symbols to read */
int sym_size;			/* Size of symbols to read */
CORE_ADDR text_offset;	/* Start of text segment for symbols */
int text_size;		/* Size of text segment for symbols */
struct section_offsets *section_offsets;

objfile = pst->objfile;
sym_offset = LDSYMOFF (pst)(((struct symloc *)((pst)->read_symtab_private))->ldsymoff
);
sym_size = LDSYMLEN (pst)(((struct symloc *)((pst)->read_symtab_private))->ldsymlen
);
text_offset = pst->textlow;
text_size = pst->texthigh - pst->textlow;
/* This cannot be simply objfile->section_offsets because of
   elfstab_offset_sections() which initializes the psymtab section
   offsets information in a special way, and that is different from
   objfile->section_offsets. */ 
section_offsets = pst->section_offsets;

current_objfile = objfile;
subfile_stack = NULL((void*)0);

stringtab_global = DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab);
last_source_file = NULL((void*)0);

abfd = objfile->obfd;
symfile_bfd = objfile->obfd;	/* Implicit param to next_text_symbol */
symbuf_end = symbuf_idx = 0;
symbuf_read = 0;
symbuf_left = sym_offset + sym_size;

/* It is necessary to actually read one symbol *before* the start
   of this symtab's symbols, because the GCC_COMPILED_FLAG_SYMBOL
   occurs before the N_SO symbol.

   Detecting this in read_dbx_symtab
   would slow down initial readin, so we look for it here instead.  */
if (!processing_acc_compilation && sym_offset >= (int) symbol_size)
  {
    stabs_seek (sym_offset - symbol_size);
    fill_symbuf (abfd);
    bufp = &symbuf[symbuf_idx++];
    INTERNALIZE_SYMBOL (nlist, bufp, abfd){ (nlist).n_type = (*(unsigned char *) ((bufp)->e_type) &
 0xff); (nlist).n_strx = ((*((abfd)->xvec->bfd_h_getx32
)) ((bufp)->e_strx)); (nlist).n_desc = ((*((abfd)->xvec
->bfd_h_getx16)) ((bufp)->e_desc)); if (bfd_get_sign_extend_vma
 (abfd)) (nlist).n_value = ((*((abfd)->xvec->bfd_h_getx_signed_32
)) ((bufp)->e_value)); else (nlist).n_value = ((*((abfd)->
xvec->bfd_h_getx32)) ((bufp)->e_value)); };
    OBJSTAT (objfile, n_stabs++)(objfile -> stats.n_stabs++);

    namestring = set_namestring (objfile, nlist);

    processing_gcc_compilation = 0;
    if (nlist.n_type == N_TEXT4)
{
 const char *tempstring = namestring;

 if (DEPRECATED_STREQ (namestring, GCC_COMPILED_FLAG_SYMBOL)(strcmp ((namestring), ("gcc_compiled.")) == 0))
   processing_gcc_compilation = 1;
 else if (DEPRECATED_STREQ (namestring, GCC2_COMPILED_FLAG_SYMBOL)(strcmp ((namestring), ("gcc2_compiled.")) == 0))
   processing_gcc_compilation = 2;
 if (tempstring[0] == bfd_get_symbol_leading_char (symfile_bfd)((symfile_bfd)->xvec->symbol_leading_char))
   ++tempstring;
 if (DEPRECATED_STREQN (tempstring, "__gnu_compiled", 14)(strncmp ((tempstring), ("__gnu_compiled"), (14)) == 0))
   processing_gcc_compilation = 2;
}

    /* Try to select a C++ demangling based on the compilation unit
       producer. */

2519#if 0
    /* For now, stay with AUTO_DEMANGLING for g++ output, as we don't
know whether it will use the old style or v3 mangling.  */
    if (processing_gcc_compilation)
{
 if (AUTO_DEMANGLING(((int) current_demangling_style) & (1 << 8)))
   {
     set_demangling_style (GNU_DEMANGLING_STYLE_STRING"gnu");
   }
}
2529#endif
  }
else
  {
    /* The N_SO starting this symtab is the first symbol, so we
       better not check the symbol before it.  I'm not this can
       happen, but it doesn't hurt to check for it.  */
    stabs_seek (sym_offset);
    processing_gcc_compilation = 0;
  }

if (symbuf_idx == symbuf_end)
  fill_symbuf (abfd);
bufp = &symbuf[symbuf_idx];
if (bfd_h_get_8 (abfd, bufp->e_type)(*(unsigned char *) (bufp->e_type) & 0xff) != N_SO)
  error ("First symbol in segment of executable not a source symbol");

max_symnum = sym_size / symbol_size;

for (symnum = 0;
     symnum < max_symnum;
     symnum++)
  {
    QUIT{ if (quit_flag) quit (); if (deprecated_interactive_hook) deprecated_interactive_hook
 (); };			/* Allow this to be interruptable */
    if (symbuf_idx == symbuf_end)
fill_symbuf (abfd);
    bufp = &symbuf[symbuf_idx++];
    INTERNALIZE_SYMBOL (nlist, bufp, abfd){ (nlist).n_type = (*(unsigned char *) ((bufp)->e_type) &
 0xff); (nlist).n_strx = ((*((abfd)->xvec->bfd_h_getx32
)) ((bufp)->e_strx)); (nlist).n_desc = ((*((abfd)->xvec
->bfd_h_getx16)) ((bufp)->e_desc)); if (bfd_get_sign_extend_vma
 (abfd)) (nlist).n_value = ((*((abfd)->xvec->bfd_h_getx_signed_32
)) ((bufp)->e_value)); else (nlist).n_value = ((*((abfd)->
xvec->bfd_h_getx32)) ((bufp)->e_value)); };
    OBJSTAT (objfile, n_stabs++)(objfile -> stats.n_stabs++);

    type = bfd_h_get_8 (abfd, bufp->e_type)(*(unsigned char *) (bufp->e_type) & 0xff);

    namestring = set_namestring (objfile, nlist);

    if (type & N_STAB0xe0)
{
 process_one_symbol (type, nlist.n_desc, nlist.n_value,
	      namestring, section_offsets, objfile);
}
    /* We skip checking for a new .o or -l file; that should never
       happen in this routine. */
    else if (type == N_TEXT4)
{
 /* I don't think this code will ever be executed, because
    the GCC_COMPILED_FLAG_SYMBOL usually is right before
    the N_SO symbol which starts this source file.
    However, there is no reason not to accept
    the GCC_COMPILED_FLAG_SYMBOL anywhere.  */

 if (DEPRECATED_STREQ (namestring, GCC_COMPILED_FLAG_SYMBOL)(strcmp ((namestring), ("gcc_compiled.")) == 0))
   processing_gcc_compilation = 1;
 else if (DEPRECATED_STREQ (namestring, GCC2_COMPILED_FLAG_SYMBOL)(strcmp ((namestring), ("gcc2_compiled.")) == 0))
   processing_gcc_compilation = 2;

2583#if 0
 /* For now, stay with AUTO_DEMANGLING for g++ output, as we don't
    know whether it will use the old style or v3 mangling.  */
 if (AUTO_DEMANGLING(((int) current_demangling_style) & (1 << 8)))
   {
     set_demangling_style (GNU_DEMANGLING_STYLE_STRING"gnu");
   }
2590#endif
}
    else if (type & N_EXT1 || type == (unsigned char) N_TEXT4
      || type == (unsigned char) N_NBTEXT
)
{
 /* Global symbol: see if we came across a dbx defintion for
    a corresponding symbol.  If so, store the value.  Remove
    syms from the chain when their values are stored, but
    search the whole chain, as there may be several syms from
    different files with the same name. */
 /* This is probably not true.  Since the files will be read
    in one at a time, each reference to a global symbol will
    be satisfied in each file as it appears. So we skip this
    section. */
 ;
}
  }

current_objfile = NULL((void*)0);

/* In a Solaris elf file, this variable, which comes from the
   value of the N_SO symbol, will still be 0.  Luckily, text_offset,
   which comes from pst->textlow is correct. */
if (last_source_start_addr == 0)
  last_source_start_addr = text_offset;

/* In reordered executables last_source_start_addr may not be the
   lower bound for this symtab, instead use text_offset which comes
   from pst->textlow which is correct.  */
if (last_source_start_addr > text_offset)
  last_source_start_addr = text_offset;

pst->symtab = end_symtab (text_offset + text_size, objfile, SECT_OFF_TEXT (objfile)((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 2623, "sect_index_text not initialized"), -1) : objfile->
sect_index_text));

end_stabs ();
2626}
2627

2629/* This handles a single symbol from the symbol-file, building symbols
 into a GDB symtab.  It takes these arguments and an implicit argument.

 TYPE is the type field of the ".stab" symbol entry.
 DESC is the desc field of the ".stab" entry.
 VALU is the value field of the ".stab" entry.
 NAME is the symbol name, in our address space.
 SECTION_OFFSETS is a set of amounts by which the sections of this object
 file were relocated when it was loaded into memory.
 Note that these section_offsets are not the 
 objfile->section_offsets but the pst->section_offsets.
 All symbols that refer
 to memory locations need to be offset by these amounts.
 OBJFILE is the object file from which we are reading symbols.
 It is used in end_symtab.  */

2645void
2646process_one_symbol (int type, int desc, CORE_ADDR valu, char *name,
    struct section_offsets *section_offsets,
    struct objfile *objfile)
2649{
struct context_stack *new;
/* This remembers the address of the start of a function.  It is used
   because in Solaris 2, N_LBRAC, N_RBRAC, and N_SLINE entries are
   relative to the current function's start address.  On systems
   other than Solaris 2, this just holds the SECT_OFF_TEXT value, and is
   used to relocate these symbol types rather than SECTION_OFFSETS.  */
static CORE_ADDR function_start_offset;

/* This holds the address of the start of a function, without the system
   peculiarities of function_start_offset.  */
static CORE_ADDR last_function_start;

/* If this is nonzero, we've seen an N_SLINE since the start of the
   current function.  We use this to tell us to move the first sline
   to the beginning of the function regardless of what its given
   value is. */
static int sline_found_in_function = 1;

/* If this is nonzero, we've seen a non-gcc N_OPT symbol for this source
   file.  Used to detect the SunPRO solaris compiler.  */
static int n_opt_found;

/* The stab type used for the definition of the last function.
   N_STSYM or N_GSYM for SunOS4 acc; N_FUN for other compilers.  */
static int function_stab_type = 0;

if (!block_address_function_relative)
1
Assuming 'block_address_function_relative' is not equal to 0→
2
←
Taking false branch→
  /* N_LBRAC, N_RBRAC and N_SLINE entries are not relative to the
     function start address, so just use the text offset.  */
  function_start_offset = ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 2679, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 2679, "Section index is uninitialized"), -1) : section_offsets
->offsets[((objfile->sect_index_text == -1) ? (internal_error
 ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c", 2679, "sect_index_text not initialized"
), -1) : objfile->sect_index_text)]);

/* Something is wrong if we see real data before
   seeing a source file name.  */

if (last_source_file == NULL((void*)0) && type != (unsigned char) N_SO)
3
←
Assuming 'last_source_file' is not equal to NULL→
  {
    /* Ignore any symbols which appear before an N_SO symbol.
       Currently no one puts symbols there, but we should deal
       gracefully with the case.  A complain()t might be in order,
       but this should not be an error ().  */
    return;
  }

switch (type)
4
←
Control jumps to 'case N_OPT:'  at line 3129→
  {
  case N_FUN:
  case N_FNAME:

    if (*name == '\000')
{
 /* This N_FUN marks the end of a function.  This closes off the
    current block.  */

  if (context_stack_depth <= 0)
    {
     lbrac_mismatch_complaint (symnum);
      break;
    }

 /* The following check is added before recording line 0 at
    end of function so as to handle hand-generated stabs
    which may have an N_FUN stabs at the end of the function, but
    no N_SLINE stabs.  */
 if (sline_found_in_function)
   record_line (current_subfile, 0, last_function_start + valu);

 within_function = 0;
 new = pop_context ();

 /* Make a block for the local symbols within.  */
 finish_block (new->name, &local_symbols, new->old_blocks,
	new->start_addr, new->start_addr + valu,
	objfile);

 /* May be switching to an assembler file which may not be using
    block relative stabs, so reset the offset.  */
 if (block_address_function_relative)
   function_start_offset = 0;

 break;
}

    sline_found_in_function = 0;

    /* Relocate for dynamic loading */
    valu += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 2735, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 2735, "Section index is uninitialized"), -1) : section_offsets
->offsets[((objfile->sect_index_text == -1) ? (internal_error
 ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c", 2735, "sect_index_text not initialized"
), -1) : objfile->sect_index_text)]);
    valu = SMASH_TEXT_ADDRESS (valu)(gdbarch_smash_text_address (current_gdbarch, valu));
    last_function_start = valu;

    goto define_a_symbol;

  case N_LBRAC:
    /* This "symbol" just indicates the start of an inner lexical
       context within a function.  */

    /* Ignore extra outermost context from SunPRO cc and acc.  */
    if (n_opt_found && desc == 1)
break;

    if (block_address_function_relative)
/* Relocate for Sun ELF acc fn-relative syms.  */
valu += function_start_offset;
    else
/* On most machines, the block addresses are relative to the
  N_SO, the linker did not relocate them (sigh).  */
valu += last_source_start_addr;

    new = push_context (desc, valu);
    break;

  case N_RBRAC:
    /* This "symbol" just indicates the end of an inner lexical
       context that was started with N_LBRAC.  */

    /* Ignore extra outermost context from SunPRO cc and acc.  */
    if (n_opt_found && desc == 1)
break;

    if (block_address_function_relative)
/* Relocate for Sun ELF acc fn-relative syms.  */
valu += function_start_offset;
    else
/* On most machines, the block addresses are relative to the
  N_SO, the linker did not relocate them (sigh).  */
valu += last_source_start_addr;

    if (context_stack_depth <= 0)
{
 lbrac_mismatch_complaint (symnum);
 break;
}

    new = pop_context ();
    if (desc != new->depth)
lbrac_mismatch_complaint (symnum);

    /* Some compilers put the variable decls inside of an
       LBRAC/RBRAC block.  This macro should be nonzero if this
       is true.  DESC is N_DESC from the N_RBRAC symbol.
       GCC_P is true if we've detected the GCC_COMPILED_SYMBOL
       or the GCC2_COMPILED_SYMBOL.  */
2791#if !defined (VARIABLES_INSIDE_BLOCK)
2792#define VARIABLES_INSIDE_BLOCK(desc, gcc_p)0 0
2793#endif

    /* Can only use new->locals as local symbols here if we're in
       gcc or on a machine that puts them before the lbrack.  */
    if (!VARIABLES_INSIDE_BLOCK (desc, processing_gcc_compilation)0)
{
 if (local_symbols != NULL((void*)0))
   {
     /* GCC development snapshots from March to December of
 2000 would output N_LSYM entries after N_LBRAC
 entries.  As a consequence, these symbols are simply
 discarded.  Complain if this is the case.  Note that
 there are some compilers which legitimately put local
 symbols within an LBRAC/RBRAC block; this complaint
 might also help sort out problems in which
 VARIABLES_INSIDE_BLOCK is incorrectly defined.  */
     complaint (&symfile_complaints,
	 "misplaced N_LBRAC entry; discarding local symbols which have no enclosing block");
   }
 local_symbols = new->locals;
}

    if (context_stack_depth
 > !VARIABLES_INSIDE_BLOCK (desc, processing_gcc_compilation)0)
{
 /* This is not the outermost LBRAC...RBRAC pair in the function,
    its local symbols preceded it, and are the ones just recovered
    from the context stack.  Define the block for them (but don't
    bother if the block contains no symbols.  Should we complain
    on blocks without symbols?  I can't think of any useful purpose
    for them).  */
 if (local_symbols != NULL((void*)0))
   {
     /* Muzzle a compiler bug that makes end < start.  (which
        compilers?  Is this ever harmful?).  */
     if (new->start_addr > valu)
{
  complaint (&symfile_complaints,
	     "block start larger than block end");
  new->start_addr = valu;
}
     /* Make a block for the local symbols within.  */
     finish_block (0, &local_symbols, new->old_blocks,
	    new->start_addr, valu, objfile);
   }
}
    else
{
 /* This is the outermost LBRAC...RBRAC pair.  There is no
    need to do anything; leave the symbols that preceded it
    to be attached to the function's own block.  We need to
    indicate that we just moved outside of the function.  */
 within_function = 0;
}

    if (VARIABLES_INSIDE_BLOCK (desc, processing_gcc_compilation)0)
/* Now pop locals of block just finished.  */
local_symbols = new->locals;
    break;

  case N_FN0x1f:
  case N_FN_SEQ0x0C:
    /* This kind of symbol indicates the start of an object file.  */
    /* Relocate for dynamic loading */
    valu += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 2857, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 2857, "Section index is uninitialized"), -1) : section_offsets
->offsets[((objfile->sect_index_text == -1) ? (internal_error
 ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c", 2857, "sect_index_text not initialized"
), -1) : objfile->sect_index_text)]);
    break;

  case N_SO:
    /* This type of symbol indicates the start of data
       for one source file.
       Finish the symbol table of the previous source file
       (if any) and start accumulating a new symbol table.  */
    /* Relocate for dynamic loading */
    valu += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 2866, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 2866, "Section index is uninitialized"), -1) : section_offsets
->offsets[((objfile->sect_index_text == -1) ? (internal_error
 ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c", 2866, "sect_index_text not initialized"
), -1) : objfile->sect_index_text)]);

    n_opt_found = 0;

    if (last_source_file)
{
 /* Check if previous symbol was also an N_SO (with some
    sanity checks).  If so, that one was actually the directory
    name, and the current one is the real file name.
    Patch things up. */
 if (previous_stab_code == (unsigned char) N_SO)
   {
     patch_subfile_names (current_subfile, name);
     break;		/* Ignore repeated SOs */
   }
 end_symtab (valu, objfile, SECT_OFF_TEXT (objfile)((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 2881, "sect_index_text not initialized"), -1) : objfile->
sect_index_text));
 end_stabs ();
}

    /* Null name means this just marks the end of text for this .o file.
       Don't start a new symtab in this case.  */
    if (*name == '\000')
break;

    if (block_address_function_relative)
function_start_offset = 0;

    start_stabs ();
    start_symtab (name, NULL((void*)0), valu);
    record_debugformat ("stabs");
    break;

  case N_SOL:
    /* This type of symbol indicates the start of data for
       a sub-source-file, one whose contents were copied or
       included in the compilation of the main source file
       (whose name was given in the N_SO symbol.)  */
    /* Relocate for dynamic loading */
    valu += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 2904, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 2904, "Section index is uninitialized"), -1) : section_offsets
->offsets[((objfile->sect_index_text == -1) ? (internal_error
 ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c", 2904, "sect_index_text not initialized"
), -1) : objfile->sect_index_text)]);
    start_subfile (name, current_subfile->dirname);
    break;

  case N_BINCL:
    push_subfile ();
    add_new_header_file (name, valu);
    start_subfile (name, current_subfile->dirname);
    break;

  case N_EINCL:
    start_subfile (pop_subfile (), current_subfile->dirname);
    break;

  case N_EXCL:
    add_old_header_file (name, valu);
    break;

  case N_SLINE:
    /* This type of "symbol" really just records
       one line-number -- core-address correspondence.
       Enter it in the line list for this symbol table.  */

    /* Relocate for dynamic loading and for ELF acc fn-relative syms.  */
    valu += function_start_offset;

    /* If this is the first SLINE note in the function, record it at
the start of the function instead of at the listed location.  */
    if (within_function && sline_found_in_function == 0)
{
 record_line (current_subfile, desc, last_function_start);
 sline_found_in_function = 1;
}
    else
record_line (current_subfile, desc, valu);
    break;

  case N_BCOMM:
    common_block_start (name, objfile);
    break;

  case N_ECOMM:
    common_block_end (objfile);
    break;

    /* The following symbol types need to have the appropriate offset added
       to their value; then we process symbol definitions in the name.  */

  case N_STSYM:		/* Static symbol in data seg */
  case N_LCSYM:		/* Static symbol in BSS seg */
  case N_ROSYM:		/* Static symbol in Read-only data seg */
    /* HORRID HACK DEPT.  However, it's Sun's furgin' fault.
       Solaris2's stabs-in-elf makes *most* symbols relative
       but leaves a few absolute (at least for Solaris 2.1 and version
       2.0.1 of the SunPRO compiler).  N_STSYM and friends sit on the fence.
       .stab "foo:S...",N_STSYM        is absolute (ld relocates it)
       .stab "foo:V...",N_STSYM        is relative (section base subtracted).
       This leaves us no choice but to search for the 'S' or 'V'...
       (or pass the whole section_offsets stuff down ONE MORE function
       call level, which we really don't want to do).  */
    {
char *p;

/* .o files and NLMs have non-zero text seg offsets, but don't need
  their static syms offset in this fashion.  XXX - This is really a
  crock that should be fixed in the solib handling code so that I
  don't have to work around it here. */

if (!symfile_relocatable)
 {
   p = strchr (name, ':');
   if (p != 0 && p[1] == 'S')
     {
/* The linker relocated it.  We don't want to add an
   elfstab_offset_sections-type offset, but we *do* want
   to add whatever solib.c passed to symbol_file_add as
   addr (this is known to affect SunOS4, and I suspect ELF
   too).  Since elfstab_offset_sections currently does not
   muck with the text offset (there is no Ttext.text
   symbol), we can get addr from the text offset.  If
   elfstab_offset_sections ever starts dealing with the
   text offset, and we still need to do this, we need to
   invent a SECT_OFF_ADDR_KLUDGE or something.  */
valu += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 2987, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 2987, "Section index is uninitialized"), -1) : section_offsets
->offsets[((objfile->sect_index_text == -1) ? (internal_error
 ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c", 2987, "sect_index_text not initialized"
), -1) : objfile->sect_index_text)]);
goto define_a_symbol;
     }
 }
/* Since it's not the kludge case, re-dispatch to the right handler. */
switch (type)
 {
 case N_STSYM:
   goto case_N_STSYM;
 case N_LCSYM:
   goto case_N_LCSYM;
 case N_ROSYM:
   goto case_N_ROSYM;
 default:
   internal_error (__FILE__"/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c", __LINE__3001, "failed internal consistency check");
 }
    }

  case_N_STSYM:		/* Static symbol in data seg */
  case N_DSLINE:		/* Source line number, data seg */
    valu += ANOFFSET (section_offsets, SECT_OFF_DATA (objfile))((((objfile->sect_index_data == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 3007, "sect_index_data not initialized"), -1) : objfile->
sect_index_data) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 3007, "Section index is uninitialized"), -1) : section_offsets
->offsets[((objfile->sect_index_data == -1) ? (internal_error
 ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c", 3007, "sect_index_data not initialized"
), -1) : objfile->sect_index_data)]);
    goto define_a_symbol;

  case_N_LCSYM:		/* Static symbol in BSS seg */
  case N_BSLINE:		/* Source line number, bss seg */
    /*   N_BROWS:       overlaps with N_BSLINE */
    valu += ANOFFSET (section_offsets, SECT_OFF_BSS (objfile))(((objfile)->sect_index_bss == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 3013, "Section index is uninitialized"), -1) : section_offsets
->offsets[(objfile)->sect_index_bss]);
    goto define_a_symbol;

  case_N_ROSYM:		/* Static symbol in Read-only data seg */
    valu += ANOFFSET (section_offsets, SECT_OFF_RODATA (objfile))((((objfile->sect_index_rodata == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 3017, "sect_index_rodata not initialized"), -1) : objfile->
sect_index_rodata) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 3017, "Section index is uninitialized"), -1) : section_offsets
->offsets[((objfile->sect_index_rodata == -1) ? (internal_error
 ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c", 3017, "sect_index_rodata not initialized"
), -1) : objfile->sect_index_rodata)]);
    goto define_a_symbol;

  case N_ENTRY:		/* Alternate entry point */
    /* Relocate for dynamic loading */
    valu += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 3022, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 3022, "Section index is uninitialized"), -1) : section_offsets
->offsets[((objfile->sect_index_text == -1) ? (internal_error
 ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c", 3022, "sect_index_text not initialized"
), -1) : objfile->sect_index_text)]);
    goto define_a_symbol;

    /* The following symbol types we don't know how to process.  Handle
       them in a "default" way, but complain to people who care.  */
  default:
  case N_CATCH:		/* Exception handler catcher */
  case N_EHDECL:		/* Exception handler name */
  case N_PC:			/* Global symbol in Pascal */
  case N_M2C:		/* Modula-2 compilation unit */
    /*   N_MOD2:        overlaps with N_EHDECL */
  case N_SCOPE:		/* Modula-2 scope information */
  case N_ECOML:		/* End common (local name) */
  case N_NBTEXT:		/* Gould Non-Base-Register symbols??? */
  case N_NBDATA:
  case N_NBBSS:
  case N_NBSTS:
  case N_NBLCS:
    unknown_symtype_complaint (hex_string (type));
    /* FALLTHROUGH */

    /* The following symbol types don't need the address field relocated,
       since it is either unused, or is absolute.  */
  define_a_symbol:
  case N_GSYM:		/* Global variable */
  case N_NSYMS:		/* Number of symbols (ultrix) */
  case N_NOMAP:		/* No map?  (ultrix) */
  case N_RSYM:		/* Register variable */
  case N_DEFD:		/* Modula-2 GNU module dependency */
  case N_SSYM:		/* Struct or union element */
  case N_LSYM:		/* Local symbol in stack */
  case N_PSYM:		/* Parameter variable */
  case N_LENG:		/* Length of preceding symbol type */
    if (name)
{
 int deftype;
 char *colon_pos = strchr (name, ':');
 if (colon_pos == NULL((void*)0))
   deftype = '\0';
 else
   deftype = colon_pos[1];

 switch (deftype)
   {
   case 'f':
   case 'F':
     function_stab_type = type;

3070#ifdef SOFUN_ADDRESS_MAYBE_MISSING
     /* Deal with the SunPRO 3.0 compiler which omits the address
        from N_FUN symbols.  */
     if (type == N_FUN
  && valu == ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile))((((objfile->sect_index_text == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 3074, "sect_index_text not initialized"), -1) : objfile->
sect_index_text) == -1) ? (internal_error ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c"
, 3074, "Section index is uninitialized"), -1) : section_offsets
->offsets[((objfile->sect_index_text == -1) ? (internal_error
 ("/usr/src/gnu/usr.bin/binutils/gdb/dbxread.c", 3074, "sect_index_text not initialized"
), -1) : objfile->sect_index_text)]))
{
  CORE_ADDR minsym_valu = 
    find_stab_function_addr (name, last_source_file, objfile);

  /* find_stab_function_addr will return 0 if the minimal
     symbol wasn't found.  (Unfortunately, this might also
     be a valid address.)  Anyway, if it *does* return 0,
     it is likely that the value was set correctly to begin
     with... */
  if (minsym_valu != 0)
    valu = minsym_valu;
}
3087#endif

     if (block_address_function_relative)
/* For Solaris 2.0 compilers, the block addresses and
   N_SLINE's are relative to the start of the
   function.  On normal systems, and when using gcc on
   Solaris 2.0, these addresses are just absolute, or
   relative to the N_SO, depending on
   BLOCK_ADDRESS_ABSOLUTE.  */
function_start_offset = valu;

     within_function = 1;

     if (context_stack_depth > 1)
{
  complaint (&symfile_complaints,
	     "unmatched N_LBRAC before symtab pos %d", symnum);
  break;
}

     if (context_stack_depth > 0)
{
  new = pop_context ();
  /* Make a block for the local symbols within.  */
  finish_block (new->name, &local_symbols, new->old_blocks,
		new->start_addr, valu, objfile);
}

     new = push_context (0, valu);
     new->name = define_symbol (valu, name, desc, type, objfile);
     break;

   default:
     define_symbol (valu, name, desc, type, objfile);
     break;
   }
}
    break;

    /* We use N_OPT to carry the gcc2_compiled flag.  Sun uses it
       for a bunch of other flags, too.  Someday we may parse their
       flags; for now we ignore theirs and hope they'll ignore ours.  */
  case N_OPT:		/* Solaris 2:  Compiler options */
    if (name)
5
←
Assuming 'name' is null→
6
←
Taking false branch→
{
 if (strcmp (name, GCC2_COMPILED_FLAG_SYMBOL"gcc2_compiled.") == 0)
   {
     processing_gcc_compilation = 2;
3135#if 0				/* Works, but is experimental.  -fnf */
     /* For now, stay with AUTO_DEMANGLING for g++ output, as we don't
 know whether it will use the old style or v3 mangling.  */
     if (AUTO_DEMANGLING(((int) current_demangling_style) & (1 << 8)))
{
  set_demangling_style (GNU_DEMANGLING_STYLE_STRING"gnu");
}
3142#endif
   }
 else
   n_opt_found = 1;
}
    break;
7
←
 Execution continues on line 3178→

  case N_MAIN:		/* Name of main routine.  */
    /* FIXME: If one has a symbol file with N_MAIN and then replaces
it with a symbol file with "main" and without N_MAIN.  I'm
not sure exactly what rule to follow but probably something
like: N_MAIN takes precedence over "main" no matter what
objfile it is in; If there is more than one N_MAIN, choose
the one in the symfile_objfile; If there is more than one
N_MAIN within a given objfile, complain() and choose
arbitrarily. (kingdon) */
    if (name != NULL((void*)0))
set_main_name (name);
    break;

    /* The following symbol types can be ignored.  */
  case N_OBJ:		/* Solaris 2:  Object file dir and name */
  case N_PATCH:	/* Solaris2: Patch Run Time Checker.  */
    /*   N_UNDF:                   Solaris 2:  file separator mark */
    /*   N_UNDF: -- we will never encounter it, since we only process one
       file's symbols at once.  */
  case N_ENDM:		/* Solaris 2:  End of module */
  case N_ALIAS:		/* SunPro F77: alias name, ignore for now.  */
    break;
  }

/* '#' is a GNU C extension to allow one symbol to refer to another
   related symbol.

   Generally this is used so that an alias can refer to its main
   symbol.  */
if (name[0] == '#')
8
←
Array access (from variable 'name') results in a null pointer dereference
  {
    /* Initialize symbol reference names and determine if this is 
       a definition.  If symbol reference is being defined, go 
       ahead and add it.  Otherwise, just return sym. */

    char *s = name;
    int refnum;

    /* If this stab defines a new reference ID that is not on the
       reference list, then put it on the reference list.

       We go ahead and advance NAME past the reference, even though
       it is not strictly necessary at this time.  */
    refnum = symbol_reference_defined (&s);
    if (refnum >= 0)
if (!ref_search (refnum))
 ref_add (refnum, 0, name, valu);
    name = s;
  }


previous_stab_code = type;
3201}
3202
3203/* FIXME: The only difference between this and elfstab_build_psymtabs
 is the call to install_minimal_symbols for elf, and the support for
 split sections.  If the differences are really that small, the code
 should be shared.  */

3208/* Scan and build partial symbols for an coff symbol file.
 The coff file has already been processed to get its minimal symbols.

 This routine is the equivalent of dbx_symfile_init and dbx_symfile_read
 rolled into one.

 OBJFILE is the object file we are reading symbols from.
 ADDR is the address relative to which the symbols are (e.g.
 the base address of the text segment).
 MAINLINE is true if we are reading the main symbol
 table (as opposed to a shared lib or dynamically loaded file).
 TEXTADDR is the address of the text section.
 TEXTSIZE is the size of the text section.
 STABSECTS is the list of .stab sections in OBJFILE.
 STABSTROFFSET and STABSTRSIZE define the location in OBJFILE where the
 .stabstr section exists.

 This routine is mostly copied from dbx_symfile_init and dbx_symfile_read,
 adjusted for coff details. */

3228void
3229coffstab_build_psymtabs (struct objfile *objfile, int mainline,
	 CORE_ADDR textaddr, unsigned int textsize,
	 struct stab_section_list *stabsects,
	 file_ptr stabstroffset, unsigned int stabstrsize)
3233{
int val;
bfd *sym_bfd = objfile->obfd;
char *name = bfd_get_filename (sym_bfd)((char *) (sym_bfd)->filename);
struct dbx_symfile_info *info;
unsigned int stabsize;

/* There is already a dbx_symfile_info allocated by our caller.
   It might even contain some info from the coff symtab to help us.  */
info = objfile->sym_stab_info;

DBX_TEXT_ADDR (objfile)(((objfile)->sym_stab_info)->text_addr) = textaddr;
DBX_TEXT_SIZE (objfile)(((objfile)->sym_stab_info)->text_size) = textsize;

3247#define	COFF_STABS_SYMBOL_SIZE12	12	/* XXX FIXME XXX */
DBX_SYMBOL_SIZE (objfile)(((objfile)->sym_stab_info)->symbol_size) = COFF_STABS_SYMBOL_SIZE12;
DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size) = stabstrsize;

if (stabstrsize > bfd_get_size (sym_bfd))
  error ("ridiculous string table size: %d bytes", stabstrsize);
DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab) = (char *)
  obstack_alloc (&objfile->objfile_obstack, stabstrsize + 1)__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
(stabstrsize + 1)); if (__o->chunk_limit - __o->next_free
 < __len) _obstack_newchunk (__o, __len); ((__o)->next_free
 += (__len)); (void) 0; }); __extension__ ({ struct obstack *
__o1 = (__h); void *value; value = (void *) __o1->object_base
; if (__o1->next_free == value) __o1->maybe_empty_object
 = 1; __o1->next_free = (((((__o1->next_free) - (char *
) 0)+__o1->alignment_mask) & ~ (__o1->alignment_mask
)) + (char *) 0); if (__o1->next_free - (char *)__o1->chunk
 > __o1->chunk_limit - (char *)__o1->chunk) __o1->
next_free = __o1->chunk_limit; __o1->object_base = __o1
->next_free; value; }); });
OBJSTAT (objfile, sz_strtab += stabstrsize + 1)(objfile -> stats.sz_strtab += stabstrsize + 1);

/* Now read in the string table in one big gulp.  */

val = bfd_seek (sym_bfd, stabstroffset, SEEK_SET0);
if (val < 0)
  perror_with_name (name);
val = bfd_bread (DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab), stabstrsize, sym_bfd);
if (val != stabstrsize)
  perror_with_name (name);

stabsread_new_init ();
buildsym_new_init ();
free_header_files ();
init_header_files ();

processing_acc_compilation = 1;

/* In a coff file, we've already installed the minimal symbols that came
   from the coff (non-stab) symbol table, so always act like an
   incremental load here. */
if (stabsects->next == NULL((void*)0))
  {
    stabsize = bfd_section_size (sym_bfd, stabsects->section)((stabsects->section)->_raw_size);
    DBX_SYMCOUNT (objfile)(((objfile)->sym_stab_info)->symcount) = stabsize / DBX_SYMBOL_SIZE (objfile)(((objfile)->sym_stab_info)->symbol_size);
    DBX_SYMTAB_OFFSET (objfile)(((objfile)->sym_stab_info)->symtab_offset) = stabsects->section->filepos;
  }
else
  {
    struct stab_section_list *stabsect;

    DBX_SYMCOUNT (objfile)(((objfile)->sym_stab_info)->symcount) = 0;
    for (stabsect = stabsects; stabsect != NULL((void*)0); stabsect = stabsect->next)
{
 stabsize = bfd_section_size (sym_bfd, stabsect->section)((stabsect->section)->_raw_size);
 DBX_SYMCOUNT (objfile)(((objfile)->sym_stab_info)->symcount) += stabsize / DBX_SYMBOL_SIZE (objfile)(((objfile)->sym_stab_info)->symbol_size);
}

    DBX_SYMTAB_OFFSET (objfile)(((objfile)->sym_stab_info)->symtab_offset) = stabsects->section->filepos;

    symbuf_sections = stabsects->next;
    symbuf_left = bfd_section_size (sym_bfd, stabsects->section)((stabsects->section)->_raw_size);
    symbuf_read = 0;
  }

dbx_symfile_read (objfile, 0);
3301}
3302
3303/* Scan and build partial symbols for an ELF symbol file.
 This ELF file has already been processed to get its minimal symbols.

 This routine is the equivalent of dbx_symfile_init and dbx_symfile_read
 rolled into one.

 OBJFILE is the object file we are reading symbols from.
 ADDR is the address relative to which the symbols are (e.g.
 the base address of the text segment).
 MAINLINE is true if we are reading the main symbol
 table (as opposed to a shared lib or dynamically loaded file).
 STABSECT is the BFD section information for the .stab section.
 STABSTROFFSET and STABSTRSIZE define the location in OBJFILE where the
 .stabstr section exists.

 This routine is mostly copied from dbx_symfile_init and dbx_symfile_read,
 adjusted for elf details. */

3321void
3322elfstab_build_psymtabs (struct objfile *objfile, int mainline,
	asection *stabsect,
	file_ptr stabstroffset, unsigned int stabstrsize)
3325{
int val;
bfd *sym_bfd = objfile->obfd;
char *name = bfd_get_filename (sym_bfd)((char *) (sym_bfd)->filename);
struct dbx_symfile_info *info;
struct cleanup *back_to = NULL((void*)0);

/* There is already a dbx_symfile_info allocated by our caller.
   It might even contain some info from the ELF symtab to help us.  */
info = objfile->sym_stab_info;

/* Find the first and last text address.  dbx_symfile_read seems to
   want this.  */
find_text_range (sym_bfd, objfile);

3340#define	ELF_STABS_SYMBOL_SIZE12	12	/* XXX FIXME XXX */
DBX_SYMBOL_SIZE (objfile)(((objfile)->sym_stab_info)->symbol_size) = ELF_STABS_SYMBOL_SIZE12;
DBX_SYMCOUNT (objfile)(((objfile)->sym_stab_info)->symcount)
  = bfd_section_size (objfile->obfd, stabsect)((stabsect)->_raw_size) / DBX_SYMBOL_SIZE (objfile)(((objfile)->sym_stab_info)->symbol_size);
DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size) = stabstrsize;
DBX_SYMTAB_OFFSET (objfile)(((objfile)->sym_stab_info)->symtab_offset) = stabsect->filepos;
DBX_STAB_SECTION (objfile)(((objfile)->sym_stab_info)->stab_section) = stabsect;

if (stabstrsize > bfd_get_size (sym_bfd))
  error ("ridiculous string table size: %d bytes", stabstrsize);
DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab) = (char *)
  obstack_alloc (&objfile->objfile_obstack, stabstrsize + 1)__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
(stabstrsize + 1)); if (__o->chunk_limit - __o->next_free
 < __len) _obstack_newchunk (__o, __len); ((__o)->next_free
 += (__len)); (void) 0; }); __extension__ ({ struct obstack *
__o1 = (__h); void *value; value = (void *) __o1->object_base
; if (__o1->next_free == value) __o1->maybe_empty_object
 = 1; __o1->next_free = (((((__o1->next_free) - (char *
) 0)+__o1->alignment_mask) & ~ (__o1->alignment_mask
)) + (char *) 0); if (__o1->next_free - (char *)__o1->chunk
 > __o1->chunk_limit - (char *)__o1->chunk) __o1->
next_free = __o1->chunk_limit; __o1->object_base = __o1
->next_free; value; }); });
OBJSTAT (objfile, sz_strtab += stabstrsize + 1)(objfile -> stats.sz_strtab += stabstrsize + 1);

/* Now read in the string table in one big gulp.  */

val = bfd_seek (sym_bfd, stabstroffset, SEEK_SET0);
if (val < 0)
  perror_with_name (name);
val = bfd_bread (DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab), stabstrsize, sym_bfd);
if (val != stabstrsize)
  perror_with_name (name);

stabsread_new_init ();
buildsym_new_init ();
free_header_files ();
init_header_files ();

processing_acc_compilation = 1;

symbuf_read = 0;
symbuf_left = bfd_section_size (objfile->obfd, stabsect)((stabsect)->_raw_size);
stabs_data = symfile_relocate_debug_section (objfile->obfd, stabsect, NULL((void*)0));
if (stabs_data)
  back_to = make_cleanup (free_current_contents, (void *) &stabs_data);

/* In an elf file, we've already installed the minimal symbols that came
   from the elf (non-stab) symbol table, so always act like an
   incremental load here.  dbx_symfile_read should not generate any new
   minimal symbols, since we will have already read the ELF dynamic symbol
   table and normal symbol entries won't be in the ".stab" section; but in
   case it does, it will install them itself.  */
dbx_symfile_read (objfile, 0);

if (back_to)
  do_cleanups (back_to);
3386}
3387
3388/* Scan and build partial symbols for a file with special sections for stabs
 and stabstrings.  The file has already been processed to get its minimal
 symbols, and any other symbols that might be necessary to resolve GSYMs.

 This routine is the equivalent of dbx_symfile_init and dbx_symfile_read
 rolled into one.

 OBJFILE is the object file we are reading symbols from.
 ADDR is the address relative to which the symbols are (e.g. the base address
 of the text segment).
 MAINLINE is true if we are reading the main symbol table (as opposed to a
 shared lib or dynamically loaded file).
 STAB_NAME is the name of the section that contains the stabs.
 STABSTR_NAME is the name of the section that contains the stab strings.

 This routine is mostly copied from dbx_symfile_init and dbx_symfile_read. */

3405void
3406stabsect_build_psymtabs (struct objfile *objfile, int mainline, char *stab_name,
	 char *stabstr_name, char *text_name)
3408{
int val;
bfd *sym_bfd = objfile->obfd;
char *name = bfd_get_filename (sym_bfd)((char *) (sym_bfd)->filename);
asection *stabsect;
asection *stabstrsect;
asection *text_sect;

stabsect = bfd_get_section_by_name (sym_bfd, stab_name);
stabstrsect = bfd_get_section_by_name (sym_bfd, stabstr_name);

if (!stabsect)
  return;

if (!stabstrsect)
  error ("stabsect_build_psymtabs:  Found stabs (%s), but not string section (%s)",
  stab_name, stabstr_name);

objfile->sym_stab_info = (struct dbx_symfile_info *)
  xmalloc (sizeof (struct dbx_symfile_info));
memset (objfile->sym_stab_info, 0, sizeof (struct dbx_symfile_info));

text_sect = bfd_get_section_by_name (sym_bfd, text_name);
if (!text_sect)
  error ("Can't find %s section in symbol file", text_name);
DBX_TEXT_ADDR (objfile)(((objfile)->sym_stab_info)->text_addr) = bfd_section_vma (sym_bfd, text_sect)((text_sect)->vma);
DBX_TEXT_SIZE (objfile)(((objfile)->sym_stab_info)->text_size) = bfd_section_size (sym_bfd, text_sect)((text_sect)->_raw_size);

DBX_SYMBOL_SIZE (objfile)(((objfile)->sym_stab_info)->symbol_size) = sizeof (struct external_nlist);
DBX_SYMCOUNT (objfile)(((objfile)->sym_stab_info)->symcount) = bfd_section_size (sym_bfd, stabsect)((stabsect)->_raw_size)
  / DBX_SYMBOL_SIZE (objfile)(((objfile)->sym_stab_info)->symbol_size);
DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size) = bfd_section_size (sym_bfd, stabstrsect)((stabstrsect)->_raw_size);
DBX_SYMTAB_OFFSET (objfile)(((objfile)->sym_stab_info)->symtab_offset) = stabsect->filepos;	/* XXX - FIXME: POKING INSIDE BFD DATA STRUCTURES */

if (DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size) > bfd_get_size (sym_bfd))
  error ("ridiculous string table size: %d bytes", DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size));
DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab) = (char *)
  obstack_alloc (&objfile->objfile_obstack, DBX_STRINGTAB_SIZE (objfile) + 1)__extension__ ({ struct obstack *__h = (&objfile->objfile_obstack
); __extension__ ({ struct obstack *__o = (__h); int __len = (
((((objfile)->sym_stab_info)->stringtab_size) + 1)); if
 (__o->chunk_limit - __o->next_free < __len) _obstack_newchunk
 (__o, __len); ((__o)->next_free += (__len)); (void) 0; })
; __extension__ ({ struct obstack *__o1 = (__h); void *value;
 value = (void *) __o1->object_base; if (__o1->next_free
 == value) __o1->maybe_empty_object = 1; __o1->next_free
 = (((((__o1->next_free) - (char *) 0)+__o1->alignment_mask
) & ~ (__o1->alignment_mask)) + (char *) 0); if (__o1->
next_free - (char *)__o1->chunk > __o1->chunk_limit -
 (char *)__o1->chunk) __o1->next_free = __o1->chunk_limit
; __o1->object_base = __o1->next_free; value; }); });
OBJSTAT (objfile, sz_strtab += DBX_STRINGTAB_SIZE (objfile) + 1)(objfile -> stats.sz_strtab += (((objfile)->sym_stab_info
)->stringtab_size) + 1);

/* Now read in the string table in one big gulp.  */

val = bfd_get_section_contents (sym_bfd,	/* bfd */
		  stabstrsect,	/* bfd section */
		  DBX_STRINGTAB (objfile)(((objfile)->sym_stab_info)->stringtab),	/* input buffer */
		  0,	/* offset into section */
		  DBX_STRINGTAB_SIZE (objfile)(((objfile)->sym_stab_info)->stringtab_size));	/* amount to read */

if (!val)
  perror_with_name (name);

stabsread_new_init ();
buildsym_new_init ();
free_header_files ();
init_header_files ();

/* Now, do an incremental load */

processing_acc_compilation = 1;
dbx_symfile_read (objfile, 0);
3468}
3469
3470static struct sym_fns aout_sym_fns =
3471{
bfd_target_aout_flavour,
dbx_new_init,			/* sym_new_init: init anything gbl to entire symtab */
dbx_symfile_init,		/* sym_init: read initial info, setup for sym_read() */
dbx_symfile_read,		/* sym_read: read a symbol file into symtab */
dbx_symfile_finish,		/* sym_finish: finished with file, cleanup */
default_symfile_offsets,	/* sym_offsets: parse user's offsets to internal form */
NULL((void*)0)				/* next: pointer to next struct sym_fns */
3479};

3481void
3482_initialize_dbxread (void)
3483{
add_symtab_fns (&aout_sym_fns);
3485}