/* Read dbx symbol tables and convert to internal format, for GDB.
- Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994
+ Copyright 1986, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 1998
Free Software Foundation, Inc.
-This file is part of GDB.
+ 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 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.
+ 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+ 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. */
/* This module provides three functions: dbx_symfile_init,
which initializes to read a symbol file; dbx_new_init, which
for real. dbx_psymtab_to_symtab() is the function that does this */
#include "defs.h"
-#include <string.h>
+#include "gdb_string.h"
#if defined(USG) || defined(__CYGNUSCLIB__)
#include <sys/types.h>
#include <fcntl.h>
#endif
-#include <obstack.h>
-#include <sys/param.h>
-#ifndef NO_SYS_FILE
-#include <sys/file.h>
-#endif
-#include <sys/stat.h>
+#include "obstack.h"
+#include "gdb_stat.h"
#include <ctype.h>
#include "symtab.h"
#include "breakpoint.h"
#include "command.h"
#include "target.h"
#include "gdbcore.h" /* for bfd stuff */
-#include "libbfd.h" /* FIXME Secret internal BFD stuff (bfd_read) */
-#include "libaout.h" /* FIXME Secret internal BFD stuff for a.out */
+#include "libaout.h" /* FIXME Secret internal BFD stuff for a.out */
#include "symfile.h"
#include "objfiles.h"
#include "buildsym.h"
#include "aout/aout64.h"
#include "aout/stab_gnu.h" /* We always use GNU stabs, not native, now */
+\f
-#if !defined (SEEK_SET)
-#define SEEK_SET 0
-#define SEEK_CUR 1
+/* This macro returns the size field of a minimal symbol, which is normally
+ stored in the "info" field. The macro can be overridden for specific
+ targets (e.g. MIPS16) that use the info field for other purposes. */
+#ifndef MSYMBOL_SIZE
+#define MSYMBOL_SIZE(msym) ((long) MSYMBOL_INFO (msym))
#endif
-/* Each partial symbol table entry contains a pointer to private data for the
- read_symtab() function to use when expanding a partial symbol table entry
- to a full symbol table entry.
- For dbxread this structure contains the offset within the file symbol table
- of first local symbol for this file, and 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). It also contains
- further information needed to locate the symbols if they are in an ELF file.
+/* We put a pointer to this structure in the read_symtab_private field
+ of the psymtab. */
+
+struct 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;
- 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. */
+ /* Further information needed to locate the symbols if they are in
+ an ELF file. */
+
+ int symbol_offset;
+ int string_offset;
+ int file_string_offset;
+ };
#define LDSYMOFF(p) (((struct symloc *)((p)->read_symtab_private))->ldsymoff)
#define LDSYMLEN(p) (((struct symloc *)((p)->read_symtab_private))->ldsymlen)
#define SYMBOL_OFFSET(p) (SYMLOC(p)->symbol_offset)
#define STRING_OFFSET(p) (SYMLOC(p)->string_offset)
#define FILE_STRING_OFFSET(p) (SYMLOC(p)->file_string_offset)
-
-struct symloc {
- int ldsymoff;
- int ldsymlen;
- int symbol_size;
- int symbol_offset;
- int string_offset;
- int file_string_offset;
-};
-
-/* Macro to determine which symbols to ignore when reading the first symbol
- of a file. Some machines override this definition. */
-#ifndef IGNORE_SYMBOL
-/* This code is used on Ultrix systems. Ignore it */
-#define IGNORE_SYMBOL(type) (type == (int)N_NSYMS)
-#endif
+\f
/* Remember what we deduced to be the source language of this psymtab. */
static enum language psymtab_language = language_unknown;
/* Nonzero means give verbose info on gdb action. From main.c. */
+
extern int info_verbose;
/* The BFD for this file -- implicit parameter to next_symbol_text. */
static unsigned symbol_size;
-/* This is the offset of the symbol table in the executable file */
+/* This is the offset of the symbol table in the executable file. */
+
static unsigned symbol_table_offset;
-/* This is the offset of the string table in the executable file */
+/* This is the offset of the string table in the executable file. */
+
static unsigned string_table_offset;
/* 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. */
+ 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. */
+
static unsigned int file_string_table_offset;
static unsigned int next_file_string_table_offset;
-/* .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. */
+/* .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. */
static int symfile_relocatable = 0;
+
+/* If this is nonzero, N_LBRAC, N_RBRAC, and N_SLINE entries are
+ relative to the function start address. */
+
+static int block_address_function_relative = 0;
\f
-/* This is the lowest text address we have yet encountered. */
+/* 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). */
+
static CORE_ADDR lowest_text_address;
+/* Non-zero if there is any line number info in the objfile. Prevents
+ end_psymtab from discarding an otherwise empty psymtab. */
+
+static int has_line_numbers;
+
/* Complaints about the symbols we have encountered. */
-struct complaint lbrac_complaint =
- {"bad block start address patched", 0, 0};
+struct complaint lbrac_complaint =
+{"bad block start address patched", 0, 0};
struct complaint string_table_offset_complaint =
- {"bad string table offset in symbol %d", 0, 0};
+{"bad string table offset in symbol %d", 0, 0};
struct complaint unknown_symtype_complaint =
- {"unknown symbol type %s", 0, 0};
+{"unknown symbol type %s", 0, 0};
struct complaint unknown_symchar_complaint =
- {"unknown symbol descriptor `%c'", 0, 0};
+{"unknown symbol descriptor `%c'", 0, 0};
struct complaint lbrac_rbrac_complaint =
- {"block start larger than block end", 0, 0};
+{"block start larger than block end", 0, 0};
struct complaint lbrac_unmatched_complaint =
- {"unmatched N_LBRAC before symtab pos %d", 0, 0};
+{"unmatched N_LBRAC before symtab pos %d", 0, 0};
struct complaint lbrac_mismatch_complaint =
- {"N_LBRAC/N_RBRAC symbol mismatch at symtab pos %d", 0, 0};
+{"N_LBRAC/N_RBRAC symbol mismatch at symtab pos %d", 0, 0};
struct complaint repeated_header_complaint =
- {"\"repeated\" header file not previously seen, at symtab pos %d", 0, 0};
+{"\"repeated\" header file %s not previously seen, at symtab pos %d", 0, 0};
+
+struct complaint unclaimed_bincl_complaint =
+{"N_BINCL %s not in entries for any file, at symtab pos %d", 0, 0};
+\f
+/* 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. */
+
+static void
+find_text_range (bfd * sym_bfd, struct objfile *objfile)
+{
+ asection *sec;
+ int found_any = 0;
+ CORE_ADDR start, end;
+
+ for (sec = sym_bfd->sections; sec; sec = sec->next)
+ if (bfd_get_section_flags (sym_bfd, sec) & SEC_CODE)
+ {
+ CORE_ADDR sec_start = bfd_section_vma (sym_bfd, sec);
+ CORE_ADDR sec_end = sec_start + bfd_section_size (sym_bfd, sec);
+
+ 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");
-struct complaint repeated_header_name_complaint =
- {"\"repeated\" header file not previously seen, named %s", 0, 0};
+ DBX_TEXT_ADDR (objfile) = start;
+ DBX_TEXT_SIZE (objfile) = end - start;
+}
\f
+
+
/* 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
/* Local function prototypes */
-static void
-free_header_files PARAMS ((void));
+extern void _initialize_dbxread (void);
-static void
-init_header_files PARAMS ((void));
+static void process_now (struct objfile *);
-static void
-read_ofile_symtab PARAMS ((struct partial_symtab *));
+static void free_header_files (void);
-static void
-dbx_psymtab_to_symtab PARAMS ((struct partial_symtab *));
+static void init_header_files (void);
-static void
-dbx_psymtab_to_symtab_1 PARAMS ((struct partial_symtab *));
+static void read_ofile_symtab (struct partial_symtab *);
-static void
-read_dbx_dynamic_symtab PARAMS ((struct section_offsets *,
- struct objfile *objfile));
+static void dbx_psymtab_to_symtab (struct partial_symtab *);
-static void
-read_dbx_symtab PARAMS ((struct section_offsets *, struct objfile *,
- CORE_ADDR, int));
+static void dbx_psymtab_to_symtab_1 (struct partial_symtab *);
-static void
-free_bincl_list PARAMS ((struct objfile *));
+static void read_dbx_dynamic_symtab (struct objfile *objfile);
-static struct partial_symtab *
-find_corresponding_bincl_psymtab PARAMS ((char *, int));
+static void read_dbx_symtab (struct objfile *);
-static void
-add_bincl_to_list PARAMS ((struct partial_symtab *, char *, int));
+static void free_bincl_list (struct objfile *);
-static void
-init_bincl_list PARAMS ((int, struct objfile *));
+static struct partial_symtab *find_corresponding_bincl_psymtab (char *, int);
-static void
-init_psymbol_list PARAMS ((struct objfile *));
+static void add_bincl_to_list (struct partial_symtab *, char *, int);
-static char *
-dbx_next_symbol_text PARAMS ((void));
+static void init_bincl_list (int, struct objfile *);
-static void
-fill_symbuf PARAMS ((bfd *));
+static char *dbx_next_symbol_text (struct objfile *);
-static void
-dbx_symfile_init PARAMS ((struct objfile *));
+static void fill_symbuf (bfd *);
-static void
-dbx_new_init PARAMS ((struct objfile *));
+static void dbx_symfile_init (struct objfile *);
-static void
-dbx_symfile_read PARAMS ((struct objfile *, struct section_offsets *, int));
+static void dbx_new_init (struct objfile *);
-static void
-dbx_symfile_finish PARAMS ((struct objfile *));
+static void dbx_symfile_read (struct objfile *, int);
-static void
-record_minimal_symbol PARAMS ((char *, CORE_ADDR, int, struct objfile *));
+static void dbx_symfile_finish (struct objfile *);
-static void
-add_new_header_file PARAMS ((char *, int));
+static void record_minimal_symbol (char *, CORE_ADDR, int, struct objfile *);
-static void
-add_old_header_file PARAMS ((char *, int));
+static void add_new_header_file (char *, int);
-static void
-add_this_object_header_file PARAMS ((int));
+static void add_old_header_file (char *, int);
+
+static void add_this_object_header_file (int);
+
+static struct partial_symtab *start_psymtab (struct objfile *, char *,
+ CORE_ADDR, int,
+ struct partial_symbol **,
+ struct partial_symbol **);
/* Free up old header file tables */
static void
-free_header_files ()
+free_header_files (void)
{
- register int i;
-
- if (header_files != NULL)
- {
- for (i = 0; i < n_header_files; i++)
- {
- free (header_files[i].name);
- }
- free ((PTR)header_files);
- header_files = NULL;
- n_header_files = 0;
- }
if (this_object_header_files)
{
- free ((PTR)this_object_header_files);
+ free ((PTR) this_object_header_files);
this_object_header_files = NULL;
}
- n_allocated_header_files = 0;
n_allocated_this_object_header_files = 0;
}
/* Allocate new header file tables */
static void
-init_header_files ()
+init_header_files (void)
{
- n_header_files = 0;
- n_allocated_header_files = 10;
- header_files = (struct header_file *)
- xmalloc (10 * sizeof (struct header_file));
-
n_allocated_this_object_header_files = 10;
this_object_header_files = (int *) xmalloc (10 * sizeof (int));
}
at the next successive FILENUM. */
static void
-add_this_object_header_file (i)
- int i;
+add_this_object_header_file (int i)
{
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));
+ n_allocated_this_object_header_files * sizeof (int));
}
this_object_header_files[n_this_object_header_files++] = i;
symbol tables for the same header file. */
static void
-add_old_header_file (name, instance)
- char *name;
- int instance;
+add_old_header_file (char *name, int instance)
{
- register struct header_file *p = header_files;
+ register struct header_file *p = HEADER_FILES (current_objfile);
register int i;
- for (i = 0; i < n_header_files; i++)
+ for (i = 0; i < N_HEADER_FILES (current_objfile); i++)
if (STREQ (p[i].name, name) && instance == p[i].instance)
{
add_this_object_header_file (i);
return;
}
- complain (&repeated_header_complaint, symnum);
- complain (&repeated_header_name_complaint, name);
+ complain (&repeated_header_complaint, name, symnum);
}
/* Add to this file a "new" header file: definitions for its types follow.
so we record the file when its "begin" is seen and ignore the "end". */
static void
-add_new_header_file (name, instance)
- char *name;
- int instance;
+add_new_header_file (char *name, int instance)
{
register int i;
+ register struct header_file *hfile;
/* Make sure there is room for one more header file. */
- if (n_header_files == n_allocated_header_files)
+ i = N_ALLOCATED_HEADER_FILES (current_objfile);
+
+ if (N_HEADER_FILES (current_objfile) == i)
{
- n_allocated_header_files *= 2;
- header_files = (struct header_file *)
- xrealloc ((char *) header_files,
- (n_allocated_header_files * sizeof (struct header_file)));
+ if (i == 0)
+ {
+ N_ALLOCATED_HEADER_FILES (current_objfile) = 10;
+ HEADER_FILES (current_objfile) = (struct header_file *)
+ xmalloc (10 * sizeof (struct header_file));
+ }
+ else
+ {
+ i *= 2;
+ N_ALLOCATED_HEADER_FILES (current_objfile) = i;
+ HEADER_FILES (current_objfile) = (struct header_file *)
+ xrealloc ((char *) HEADER_FILES (current_objfile),
+ (i * sizeof (struct header_file)));
+ }
}
/* Create an entry for this header file. */
- i = n_header_files++;
- header_files[i].name = savestring (name, strlen(name));
- header_files[i].instance = instance;
- header_files[i].length = 10;
- header_files[i].vector
+ i = N_HEADER_FILES (current_objfile)++;
+ hfile = HEADER_FILES (current_objfile) + i;
+ hfile->name = savestring (name, strlen (name));
+ hfile->instance = instance;
+ hfile->length = 10;
+ hfile->vector
= (struct type **) xmalloc (10 * sizeof (struct type *));
- memset (header_files[i].vector, 0, 10 * sizeof (struct type *));
+ memset (hfile->vector, 0, 10 * sizeof (struct type *));
add_this_object_header_file (i);
}
#if 0
static struct type **
-explicit_lookup_type (real_filenum, index)
- int real_filenum, index;
+explicit_lookup_type (int real_filenum, int index)
{
- register struct header_file *f = &header_files[real_filenum];
+ register struct header_file *f = &HEADER_FILES (current_objfile)[real_filenum];
if (index >= f->length)
{
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);
+ '\0', f->length * sizeof (struct type *) / 2);
}
return &f->vector[index];
}
#endif
\f
static void
-record_minimal_symbol (name, address, type, objfile)
- char *name;
- CORE_ADDR address;
- int type;
- struct objfile *objfile;
+record_minimal_symbol (char *name, CORE_ADDR address, int type,
+ struct objfile *objfile)
{
enum minimal_symbol_type ms_type;
int section;
+ asection *bfd_section;
switch (type)
{
case N_TEXT | N_EXT:
ms_type = mst_text;
- section = SECT_OFF_TEXT;
+ section = SECT_OFF_TEXT (objfile);
+ bfd_section = DBX_TEXT_SECTION (objfile);
break;
case N_DATA | N_EXT:
ms_type = mst_data;
- section = SECT_OFF_DATA;
+ section = SECT_OFF_DATA (objfile);
+ bfd_section = DBX_DATA_SECTION (objfile);
break;
case N_BSS | N_EXT:
ms_type = mst_bss;
- section = SECT_OFF_BSS;
+ section = SECT_OFF_BSS (objfile);
+ bfd_section = DBX_BSS_SECTION (objfile);
break;
case N_ABS | N_EXT:
ms_type = mst_abs;
section = -1;
+ bfd_section = NULL;
break;
#ifdef N_SETV
case N_SETV | N_EXT:
ms_type = mst_data;
- section = SECT_OFF_DATA;
+ section = SECT_OFF_DATA (objfile);
+ bfd_section = DBX_DATA_SECTION (objfile);
break;
case N_SETV:
/* 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. */
+ 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;
+ section = SECT_OFF_DATA (objfile);
+ bfd_section = DBX_DATA_SECTION (objfile);
break;
#endif
case N_TEXT:
case N_FN:
case N_FN_SEQ:
ms_type = mst_file_text;
- section = SECT_OFF_TEXT;
+ section = SECT_OFF_TEXT (objfile);
+ bfd_section = DBX_TEXT_SECTION (objfile);
break;
case N_DATA:
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 '_'. */
+ 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' && STREQ ("__DYNAMIC", name))
ms_type = mst_data;
if (VTBL_PREFIX_P ((tempstring)))
ms_type = mst_data;
}
- section = SECT_OFF_DATA;
+ section = SECT_OFF_DATA (objfile);
+ bfd_section = DBX_DATA_SECTION (objfile);
break;
case N_BSS:
ms_type = mst_file_bss;
- section = SECT_OFF_BSS;
+ section = SECT_OFF_BSS (objfile);
+ bfd_section = DBX_BSS_SECTION (objfile);
break;
default:
ms_type = mst_unknown;
section = -1;
+ bfd_section = NULL;
break;
- }
+ }
- if (ms_type == mst_file_text || ms_type == mst_text
+ if ((ms_type == mst_file_text || ms_type == mst_text)
&& address < lowest_text_address)
lowest_text_address = address;
prim_record_minimal_symbol_and_info
- (obsavestring (name, strlen (name), &objfile -> symbol_obstack),
- address,
- ms_type,
- NULL,
- section,
- objfile);
+ (name, address, ms_type, NULL, section, bfd_section, objfile);
}
\f
/* Scan and build partial symbols for a symbol file.
put all the relevant info into a "struct dbx_symfile_info",
hung off the objfile structure.
- SECTION_OFFSETS contains offsets relative to which the symbols in the
- various sections are (depending where the sections were actually loaded).
MAINLINE is true if we are reading the main symbol
table (as opposed to a shared lib or dynamically loaded file). */
static void
-dbx_symfile_read (objfile, section_offsets, mainline)
- struct objfile *objfile;
- struct section_offsets *section_offsets;
- int mainline; /* FIXME comments above */
+dbx_symfile_read (struct objfile *objfile, int mainline)
{
bfd *sym_bfd;
int val;
struct cleanup *back_to;
- val = strlen (objfile->name);
+ 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. XXX - This is a Krock. Solaris stabs-in-elf
- should be fixed to determine pst->textlow without using this text seg of
- 0 fixup crap. */
+ symbols with a value of 0. */
- if (strcmp (&objfile->name[val-2], ".o") == 0
- || strcmp (&objfile->name[val-4], ".nlm") == 0)
- symfile_relocatable = 1;
+ symfile_relocatable = bfd_get_file_flags (sym_bfd) & HAS_RELOC;
- sym_bfd = objfile->obfd;
- val = bfd_seek (objfile->obfd, DBX_SYMTAB_OFFSET (objfile), SEEK_SET);
+ /* 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), "elf", 3))
+ || (0 == strncmp (bfd_get_target (sym_bfd), "som", 3))
+ || (0 == strncmp (bfd_get_target (sym_bfd), "coff", 4))
+ || (0 == strncmp (bfd_get_target (sym_bfd), "pe", 2))
+ || (0 == strncmp (bfd_get_target (sym_bfd), "epoc-pe", 7))
+ || (0 == strncmp (bfd_get_target (sym_bfd), "nlm", 3)));
+
+ val = bfd_seek (sym_bfd, DBX_SYMTAB_OFFSET (objfile), SEEK_SET);
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);
+ if (mainline
+ || objfile->global_psymbols.size == 0
+ || objfile->static_psymbols.size == 0)
+ init_psymbol_list (objfile, DBX_SYMCOUNT (objfile));
symbol_size = DBX_SYMBOL_SIZE (objfile);
symbol_table_offset = DBX_SYMTAB_OFFSET (objfile);
- pending_blocks = 0;
+ free_pending_blocks ();
back_to = make_cleanup (really_free_pendings, 0);
init_minimal_symbol_collection ();
- make_cleanup (discard_minimal_symbols, 0);
+ make_cleanup_discard_minimal_symbols ();
- /* Now that the symbol table data of the executable file are all in core,
- process them and define symbols accordingly. */
+ /* Read stabs data from executable file and define symbols. */
- read_dbx_symtab (section_offsets, objfile,
- bfd_section_vma (sym_bfd, DBX_TEXT_SECT (objfile)),
- bfd_section_size (sym_bfd, DBX_TEXT_SECT (objfile)));
+ read_dbx_symtab (objfile);
- /* Add the dynamic symbols if we are reading the main symbol table. */
+ /* Add the dynamic symbols. */
- if (mainline)
- read_dbx_dynamic_symtab (section_offsets, objfile);
+ 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);
- if (!have_partial_symbols ()) {
- wrap_here ("");
- printf_filtered ("(no debugging symbols found)...");
- wrap_here ("");
- }
-
do_cleanups (back_to);
}
file, e.g. a shared library). */
static void
-dbx_new_init (ignore)
- struct objfile *ignore;
+dbx_new_init (struct objfile *ignore)
{
stabsread_new_init ();
buildsym_new_init ();
be called unless this is an a.out (or very similar) file.
FIXME, there should be a cleaner peephole into the BFD environment here. */
-#define DBX_STRINGTAB_SIZE_SIZE sizeof(long) /* FIXME */
+#define DBX_STRINGTAB_SIZE_SIZE sizeof(long) /* FIXME */
static void
-dbx_symfile_init (objfile)
- struct objfile *objfile;
+dbx_symfile_init (struct objfile *objfile)
{
int val;
bfd *sym_bfd = objfile->obfd;
char *name = bfd_get_filename (sym_bfd);
+ asection *text_sect;
unsigned char size_temp[DBX_STRINGTAB_SIZE_SIZE];
/* Allocate struct to keep track of the symfile */
- objfile->sym_stab_info = (PTR)
- xmmalloc (objfile -> md, sizeof (struct dbx_symfile_info));
+ objfile->sym_stab_info = (struct dbx_symfile_info *)
+ xmmalloc (objfile->md, sizeof (struct dbx_symfile_info));
+ memset ((PTR) objfile->sym_stab_info, 0, sizeof (struct dbx_symfile_info));
+
+ DBX_TEXT_SECTION (objfile) = bfd_get_section_by_name (sym_bfd, ".text");
+ DBX_DATA_SECTION (objfile) = bfd_get_section_by_name (sym_bfd, ".data");
+ DBX_BSS_SECTION (objfile) = bfd_get_section_by_name (sym_bfd, ".bss");
/* FIXME POKING INSIDE BFD DATA STRUCTURES */
#define STRING_TABLE_OFFSET (sym_bfd->origin + obj_str_filepos (sym_bfd))
/* FIXME POKING INSIDE BFD DATA STRUCTURES */
DBX_SYMFILE_INFO (objfile)->stab_section_info = NULL;
- DBX_TEXT_SECT (objfile) = bfd_get_section_by_name (sym_bfd, ".text");
- if (!DBX_TEXT_SECT (objfile))
+
+ 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) = bfd_section_vma (sym_bfd, text_sect);
+ DBX_TEXT_SIZE (objfile) = bfd_section_size (sym_bfd, text_sect);
DBX_SYMBOL_SIZE (objfile) = obj_symbol_entry_size (sym_bfd);
DBX_SYMCOUNT (objfile) = bfd_get_symcount (sym_bfd);
if (STRING_TABLE_OFFSET == 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. */
+ will never be zero, even when there is no string table. This
+ would appear to be a bug in bfd. */
DBX_STRINGTAB_SIZE (objfile) = 0;
DBX_STRINGTAB (objfile) = NULL;
}
val = bfd_seek (sym_bfd, STRING_TABLE_OFFSET, SEEK_SET);
if (val < 0)
perror_with_name (name);
-
+
memset ((PTR) size_temp, 0, sizeof (size_temp));
val = bfd_read ((PTR) size_temp, sizeof (size_temp), 1, sym_bfd);
if (val < 0)
bfd can't tell us there is no string table, the sanity checks may
or may not catch this. */
DBX_STRINGTAB_SIZE (objfile) = bfd_h_get_32 (sym_bfd, size_temp);
-
+
if (DBX_STRINGTAB_SIZE (objfile) < sizeof (size_temp)
|| DBX_STRINGTAB_SIZE (objfile) > bfd_get_size (sym_bfd))
error ("ridiculous string table size (%d bytes).",
DBX_STRINGTAB_SIZE (objfile));
-
+
DBX_STRINGTAB (objfile) =
- (char *) obstack_alloc (&objfile -> psymbol_obstack,
+ (char *) obstack_alloc (&objfile->psymbol_obstack,
DBX_STRINGTAB_SIZE (objfile));
-
+ OBJSTAT (objfile, sz_strtab += DBX_STRINGTAB_SIZE (objfile));
+
/* Now read in the string table in one big gulp. */
-
+
val = bfd_seek (sym_bfd, STRING_TABLE_OFFSET, SEEK_SET);
if (val < 0)
perror_with_name (name);
objfile struct from the global list of known objfiles. */
static void
-dbx_symfile_finish (objfile)
- struct objfile *objfile;
+dbx_symfile_finish (struct objfile *objfile)
{
if (objfile->sym_stab_info != NULL)
{
- mfree (objfile -> md, objfile->sym_stab_info);
+ if (HEADER_FILES (objfile) != NULL)
+ {
+ register int i = N_HEADER_FILES (objfile);
+ register struct header_file *hfiles = HEADER_FILES (objfile);
+
+ while (--i >= 0)
+ {
+ free (hfiles[i].name);
+ free (hfiles[i].vector);
+ }
+ free ((PTR) hfiles);
+ }
+ mfree (objfile->md, objfile->sym_stab_info);
}
free_header_files ();
}
-
\f
+
/* Buffer for reading the symbol table entries. */
-static struct internal_nlist symbuf[4096];
+static struct external_nlist symbuf[4096];
static int symbuf_idx;
static int symbuf_end;
+/* cont_elem is used for continuing information in cfront.
+ It saves information about which types need to be fixed up and
+ completed after all the stabs are read. */
+struct cont_elem
+ {
+ /* sym and stabstring for continuing information in cfront */
+ struct symbol *sym;
+ char *stabs;
+ /* state dependencies (statics that must be preserved) */
+ int sym_idx;
+ int sym_end;
+ int symnum;
+ int (*func) (struct objfile *, struct symbol *, char *);
+ /* other state dependencies include:
+ (assumption is that these will not change since process_now FIXME!!)
+ stringtab_global
+ n_stabs
+ objfile
+ symfile_bfd */
+ };
+
+static struct cont_elem *cont_list = 0;
+static int cont_limit = 0;
+static int cont_count = 0;
+
+/* Arrange for function F to be called with arguments SYM and P later
+ in the stabs reading process. */
+void
+process_later (struct symbol *sym, char *p,
+ int (*f) (struct objfile *, struct symbol *, char *))
+{
+
+ /* Allocate more space for the deferred list. */
+ if (cont_count >= cont_limit - 1)
+ {
+ cont_limit += 32; /* chunk size */
+
+ cont_list
+ = (struct cont_elem *) xrealloc (cont_list,
+ (cont_limit
+ * sizeof (struct cont_elem)));
+ if (!cont_list)
+ error ("Virtual memory exhausted\n");
+ }
+
+ /* Save state variables so we can process these stabs later. */
+ cont_list[cont_count].sym_idx = symbuf_idx;
+ cont_list[cont_count].sym_end = symbuf_end;
+ cont_list[cont_count].symnum = symnum;
+ cont_list[cont_count].sym = sym;
+ cont_list[cont_count].stabs = p;
+ cont_list[cont_count].func = f;
+ cont_count++;
+}
+
+/* Call deferred funtions in CONT_LIST. */
+
+static void
+process_now (struct objfile *objfile)
+{
+ int i;
+ int save_symbuf_idx;
+ int save_symbuf_end;
+ int save_symnum;
+ struct symbol *sym;
+ char *stabs;
+ int err;
+ int (*func) (struct objfile *, struct symbol *, char *);
+
+ /* Save the state of our caller, we'll want to restore it before
+ returning. */
+ save_symbuf_idx = symbuf_idx;
+ save_symbuf_end = symbuf_end;
+ save_symnum = symnum;
+
+ /* Iterate over all the deferred stabs. */
+ for (i = 0; i < cont_count; i++)
+ {
+ /* Restore the state for this deferred stab. */
+ symbuf_idx = cont_list[i].sym_idx;
+ symbuf_end = cont_list[i].sym_end;
+ symnum = cont_list[i].symnum;
+ sym = cont_list[i].sym;
+ stabs = cont_list[i].stabs;
+ func = cont_list[i].func;
+
+ /* Call the function to handle this deferrd stab. */
+ err = (*func) (objfile, sym, stabs);
+ if (err)
+ error ("Internal error: unable to resolve stab.\n");
+ }
+
+ /* Restore our caller's state. */
+ symbuf_idx = save_symbuf_idx;
+ symbuf_end = save_symbuf_end;
+ symnum = save_symnum;
+ cont_count = 0;
+}
+
+
/* Name of last function encountered. Used in Solaris to approximate
object file boundaries. */
static char *last_function_name;
/* 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. */
+ 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? */
static char *stringtab_global;
+/* 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). */
+static struct stab_section_list *symbuf_sections;
+static unsigned int symbuf_left;
+static unsigned int symbuf_read;
+
/* Refill the symbol table input buffer
and set the variables that control fetching entries from it.
Reports an error if no data available.
(into the string table) but this does no harm. */
static void
-fill_symbuf (sym_bfd)
- bfd *sym_bfd;
+fill_symbuf (bfd *sym_bfd)
{
- int nbytes = bfd_read ((PTR)symbuf, sizeof (symbuf), 1, sym_bfd);
+ unsigned int count;
+ int nbytes;
+
+ if (symbuf_sections == NULL)
+ count = sizeof (symbuf);
+ else
+ {
+ if (symbuf_left <= 0)
+ {
+ file_ptr filepos = symbuf_sections->section->filepos;
+ if (bfd_seek (sym_bfd, filepos, SEEK_SET) != 0)
+ perror_with_name (bfd_get_filename (sym_bfd));
+ symbuf_left = bfd_section_size (sym_bfd, symbuf_sections->section);
+ symbol_table_offset = filepos - symbuf_read;
+ symbuf_sections = symbuf_sections->next;
+ }
+
+ count = symbuf_left;
+ if (count > sizeof (symbuf))
+ count = sizeof (symbuf);
+ }
+
+ nbytes = bfd_read ((PTR) symbuf, count, 1, sym_bfd);
if (nbytes < 0)
perror_with_name (bfd_get_filename (sym_bfd));
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;
}
#define SWAP_SYMBOL(symp, abfd) \
(unsigned char *)&(symp)->n_value); \
}
+#define INTERNALIZE_SYMBOL(intern, extern, abfd) \
+ { \
+ (intern).n_type = bfd_h_get_8 (abfd, (extern)->e_type); \
+ (intern).n_strx = bfd_h_get_32 (abfd, (extern)->e_strx); \
+ (intern).n_desc = bfd_h_get_16 (abfd, (extern)->e_desc); \
+ (intern).n_value = bfd_h_get_32 (abfd, (extern)->e_value); \
+ }
+
/* 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. */
call this function to get the continuation. */
static char *
-dbx_next_symbol_text ()
+dbx_next_symbol_text (struct objfile *objfile)
{
+ struct internal_nlist nlist;
+
if (symbuf_idx == symbuf_end)
fill_symbuf (symfile_bfd);
+
symnum++;
- SWAP_SYMBOL(&symbuf[symbuf_idx], symfile_bfd);
- return symbuf[symbuf_idx++].n_strx + stringtab_global
- + file_string_table_offset;
-}
-\f
-/* Initializes storage for all of the partial symbols that will be
- created by read_dbx_symtab and subsidiaries. */
+ INTERNALIZE_SYMBOL (nlist, &symbuf[symbuf_idx], symfile_bfd);
+ OBJSTAT (objfile, n_stabs++);
-static void
-init_psymbol_list (objfile)
- struct objfile *objfile;
-{
- /* Free any previously allocated psymbol lists. */
- if (objfile -> global_psymbols.list)
- mfree (objfile -> md, (PTR)objfile -> global_psymbols.list);
- if (objfile -> static_psymbols.list)
- mfree (objfile -> md, (PTR)objfile -> static_psymbols.list);
-
- /* Current best guess is that there are approximately a twentieth
- of the total symbols (in a debugging file) are global or static
- oriented symbols */
- objfile -> global_psymbols.size = DBX_SYMCOUNT (objfile) / 10;
- objfile -> static_psymbols.size = DBX_SYMCOUNT (objfile) / 10;
- objfile -> global_psymbols.next = objfile -> global_psymbols.list = (struct partial_symbol *)
- xmmalloc (objfile -> md, objfile -> global_psymbols.size * sizeof (struct partial_symbol));
- objfile -> static_psymbols.next = objfile -> static_psymbols.list = (struct partial_symbol *)
- xmmalloc (objfile -> md, objfile -> static_psymbols.size * sizeof (struct partial_symbol));
-}
+ symbuf_idx++;
+ return nlist.n_strx + stringtab_global + file_string_table_offset;
+}
+\f
/* Initialize the list of bincls to contain none and have some
allocated. */
static void
-init_bincl_list (number, objfile)
- int number;
- struct objfile *objfile;
+init_bincl_list (int number, struct objfile *objfile)
{
bincls_allocated = number;
next_bincl = bincl_list = (struct header_file_location *)
- xmmalloc (objfile -> md, bincls_allocated * sizeof(struct header_file_location));
+ xmmalloc (objfile->md, bincls_allocated * sizeof (struct header_file_location));
}
/* Add a bincl to the list. */
static void
-add_bincl_to_list (pst, name, instance)
- struct partial_symtab *pst;
- char *name;
- int instance;
+add_bincl_to_list (struct partial_symtab *pst, char *name, int instance)
{
if (next_bincl >= bincl_list + bincls_allocated)
{
int offset = next_bincl - bincl_list;
bincls_allocated *= 2;
bincl_list = (struct header_file_location *)
- xmrealloc (pst->objfile->md, (char *)bincl_list,
- bincls_allocated * sizeof (struct header_file_location));
+ xmrealloc (pst->objfile->md, (char *) bincl_list,
+ bincls_allocated * sizeof (struct header_file_location));
next_bincl = bincl_list + offset;
}
next_bincl->pst = pst;
with that header_file_location. */
static struct partial_symtab *
-find_corresponding_bincl_psymtab (name, instance)
- char *name;
- int instance;
+find_corresponding_bincl_psymtab (char *name, int instance)
{
struct header_file_location *bincl;
&& STREQ (name, bincl->name))
return bincl->pst;
+ complain (&repeated_header_complaint, name, symnum);
return (struct partial_symtab *) 0;
}
/* Free the storage allocated for the bincl list. */
static void
-free_bincl_list (objfile)
- struct objfile *objfile;
+free_bincl_list (struct objfile *objfile)
{
- mfree (objfile -> md, (PTR)bincl_list);
+ mfree (objfile->md, (PTR) bincl_list);
bincls_allocated = 0;
}
+static void
+do_free_bincl_list_cleanup (void *objfile)
+{
+ free_bincl_list (objfile);
+}
+
+static struct cleanup *
+make_cleanup_free_bincl_list (struct objfile *objfile)
+{
+ return make_cleanup (do_free_bincl_list_cleanup, objfile);
+}
+
/* Scan a SunOs dynamic symbol table for symbols of interest and
add them to the minimal symbol table. */
static void
-read_dbx_dynamic_symtab (section_offsets, objfile)
- struct section_offsets *section_offsets;
- struct objfile *objfile;
+read_dbx_dynamic_symtab (struct objfile *objfile)
{
bfd *abfd = objfile->obfd;
struct cleanup *back_to;
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
if (bfd_get_section_flags (abfd, sec) & SEC_CODE)
{
- sym_value += ANOFFSET (section_offsets, SECT_OFF_TEXT);
+ sym_value += ANOFFSET (objfile->section_offsets, SECT_OFF_TEXT (objfile));
type = N_TEXT;
}
else if (bfd_get_section_flags (abfd, sec) & SEC_DATA)
{
- sym_value += ANOFFSET (section_offsets, SECT_OFF_DATA);
+ sym_value += ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
type = N_DATA;
}
else if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
{
- sym_value += ANOFFSET (section_offsets, SECT_OFF_BSS);
+ sym_value += ANOFFSET (objfile->section_offsets, SECT_OFF_BSS (objfile));
type = N_BSS;
}
else
do_cleanups (back_to);
return;
}
-
+
dynrels = (arelent **) xmalloc (dynrel_size);
make_cleanup (free, dynrels);
counter++, relptr++)
{
arelent *rel = *relptr;
- CORE_ADDR address = rel->address;
+ CORE_ADDR address =
+ rel->address + ANOFFSET (objfile->section_offsets, SECT_OFF_DATA (objfile));
switch (bfd_get_arch (abfd))
{
continue;
}
- prim_record_minimal_symbol (bfd_asymbol_name (*rel->sym_ptr_ptr),
- address,
- mst_solib_trampoline,
+ name = (char *) bfd_asymbol_name (*rel->sym_ptr_ptr);
+ prim_record_minimal_symbol (name, address, mst_solib_trampoline,
objfile);
}
do_cleanups (back_to);
}
-/* Given pointers to an a.out symbol table in core containing dbx
- style data, setup partial_symtab's describing each source file for
- which debugging information is available.
- SYMFILE_NAME is the name of the file we are reading from
- and SECTION_OFFSETS is the set of offsets for the various sections
- of the file (a set of zeros if the mainline program). */
+/* Setup partial_symtab's describing each source file for which
+ debugging information is available. */
static void
-read_dbx_symtab (section_offsets, objfile, text_addr, text_size)
- struct section_offsets *section_offsets;
- struct objfile *objfile;
- CORE_ADDR text_addr;
- int text_size;
+read_dbx_symtab (struct objfile *objfile)
{
- register struct internal_nlist *bufp = 0; /* =0 avoids gcc -Wall glitch */
+ register struct external_nlist *bufp = 0; /* =0 avoids gcc -Wall glitch */
+ struct internal_nlist nlist;
+ CORE_ADDR text_addr;
+ int text_size;
+
register 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;
/* Current partial symtab */
struct partial_symtab *pst;
struct partial_symtab **dependency_list;
int dependencies_used, dependencies_allocated;
+ text_addr = DBX_TEXT_ADDR (objfile);
+ text_size = DBX_TEXT_SIZE (objfile);
+
/* 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);
-
+
pst = (struct partial_symtab *) 0;
includes_allocated = 30;
/* Init bincl list */
init_bincl_list (20, objfile);
- back_to = make_cleanup (free_bincl_list, objfile);
+ back_to = make_cleanup_free_bincl_list (objfile);
last_source_file = NULL;
- lowest_text_address = (CORE_ADDR)-1;
+ 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;
for (symnum = 0; symnum < DBX_SYMCOUNT (objfile); symnum++)
{
/* Get the symbol for this run and pull out some info */
- QUIT; /* allow this to be interruptable */
+ QUIT; /* allow this to be interruptable */
if (symbuf_idx == symbuf_end)
fill_symbuf (abfd);
bufp = &symbuf[symbuf_idx++];
/*
* Special case to speed up readin.
*/
- if (bufp->n_type == (unsigned char)N_SLINE) continue;
+ if (bfd_h_get_8 (abfd, bufp->e_type) == N_SLINE)
+ {
+ has_line_numbers = 1;
+ continue;
+ }
- SWAP_SYMBOL (bufp, abfd);
+ INTERNALIZE_SYMBOL (nlist, bufp, abfd);
+ OBJSTAT (objfile, 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.
- */
-
-/* Set namestring based on bufp. If the string table index is invalid,
+ *) 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.
+ */
+
+/* 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. */
/*FIXME: Too many adds and indirections in here for the inner loop. */
#define SET_NAMESTRING()\
- if (((unsigned)bufp->n_strx + file_string_table_offset) >= \
+ if (((unsigned)CUR_SYMBOL_STRX + file_string_table_offset) >= \
DBX_STRINGTAB_SIZE (objfile)) { \
complain (&string_table_offset_complaint, symnum); \
namestring = "<bad string table offset>"; \
} else \
- namestring = bufp->n_strx + file_string_table_offset + \
+ namestring = CUR_SYMBOL_STRX + file_string_table_offset + \
DBX_STRINGTAB (objfile)
-#define CUR_SYMBOL_TYPE bufp->n_type
-#define CUR_SYMBOL_VALUE bufp->n_value
+#define CUR_SYMBOL_TYPE nlist.n_type
+#define CUR_SYMBOL_VALUE nlist.n_value
+#define CUR_SYMBOL_STRX nlist.n_strx
#define DBXREAD_ONLY
-#define START_PSYMTAB(ofile,secoff,fname,low,symoff,global_syms,static_syms)\
- start_psymtab(ofile, secoff, fname, low, symoff, global_syms, static_syms)
-#define END_PSYMTAB(pst,ilist,ninc,c_off,c_text,dep_list,n_deps)\
- end_psymtab(pst,ilist,ninc,c_off,c_text,dep_list,n_deps)
+#define START_PSYMTAB(ofile,fname,low,symoff,global_syms,static_syms)\
+ start_psymtab(ofile, fname, low, symoff, global_syms, static_syms)
+#define END_PSYMTAB(pst,ilist,ninc,c_off,c_text,dep_list,n_deps,textlow_not_set)\
+ end_psymtab(pst,ilist,ninc,c_off,c_text,dep_list,n_deps,textlow_not_set)
#include "partial-stab.h"
}
/* If there's stuff to be cleaned up, clean it up. */
- if (DBX_SYMCOUNT (objfile) > 0 /* We have some syms */
+ if (DBX_SYMCOUNT (objfile) > 0 /* We have some syms */
/*FIXME, does this have a bug at start address 0? */
&& last_o_file_start
- && objfile -> ei.entry_point < bufp->n_value
- && objfile -> ei.entry_point >= last_o_file_start)
+ && objfile->ei.entry_point < nlist.n_value
+ && objfile->ei.entry_point >= last_o_file_start)
{
- objfile -> ei.entry_file_lowpc = last_o_file_start;
- objfile -> ei.entry_file_highpc = bufp->n_value;
+ objfile->ei.entry_file_lowpc = last_o_file_start;
+ objfile->ei.entry_file_highpc = nlist.n_value;
}
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)))
+ : lowest_text_address)
+ + text_size;
+
end_psymtab (pst, psymtab_include_list, includes_used,
symnum * symbol_size,
- (lowest_text_address == (CORE_ADDR)-1
- ? (text_addr + section_offsets->offsets[SECT_OFF_TEXT])
- : lowest_text_address)
- + text_size,
- dependency_list, dependencies_used);
+ text_end > pst->texthigh ? text_end : pst->texthigh,
+ dependency_list, dependencies_used, textlow_not_set);
}
do_cleanups (back_to);
(normal). */
-struct partial_symtab *
-start_psymtab (objfile, section_offsets,
- filename, textlow, ldsymoff, global_syms, static_syms)
- struct objfile *objfile;
- struct section_offsets *section_offsets;
- char *filename;
- CORE_ADDR textlow;
- int ldsymoff;
- struct partial_symbol *global_syms;
- struct partial_symbol *static_syms;
+static struct partial_symtab *
+start_psymtab (struct objfile *objfile, char *filename, CORE_ADDR textlow,
+ int ldsymoff, struct partial_symbol **global_syms,
+ struct partial_symbol **static_syms)
{
struct partial_symtab *result =
- start_psymtab_common(objfile, section_offsets,
- filename, textlow, global_syms, static_syms);
+ start_psymtab_common (objfile, objfile->section_offsets,
+ filename, textlow, global_syms, static_syms);
result->read_symtab_private = (char *)
- obstack_alloc (&objfile -> psymbol_obstack, sizeof (struct symloc));
- LDSYMOFF(result) = ldsymoff;
+ obstack_alloc (&objfile->psymbol_obstack, sizeof (struct symloc));
+ LDSYMOFF (result) = ldsymoff;
result->read_symtab = dbx_psymtab_to_symtab;
- SYMBOL_SIZE(result) = symbol_size;
- SYMBOL_OFFSET(result) = symbol_table_offset;
- STRING_OFFSET(result) = string_table_offset;
- FILE_STRING_OFFSET(result) = file_string_table_offset;
+ SYMBOL_SIZE (result) = symbol_size;
+ SYMBOL_OFFSET (result) = symbol_table_offset;
+ STRING_OFFSET (result) = string_table_offset;
+ FILE_STRING_OFFSET (result) = 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
FIXME: List variables and peculiarities of same. */
struct partial_symtab *
-end_psymtab (pst, include_list, num_includes, capping_symbol_offset,
- capping_text, dependency_list, number_dependencies)
- 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;
+end_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)
{
int i;
- struct partial_symtab *p1;
- struct objfile *objfile = pst -> objfile;
+ struct objfile *objfile = pst->objfile;
if (capping_symbol_offset != -1)
- LDSYMLEN(pst) = capping_symbol_offset - LDSYMOFF(pst);
+ LDSYMLEN (pst) = capping_symbol_offset - LDSYMOFF (pst);
pst->texthigh = capping_text;
-#ifdef N_SO_ADDRESS_MAYBE_MISSING
+#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 in partial-stab.h: if we see a static
or global function, and the textlow for the current pst
- is still 0, then we use that function's address for
- the textlow of the 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
+ /* Now, to fill in texthigh, we remember the last function seen
in the .o file (also in partial-stab.h). 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.
-
- Unfortunately, that does not cover the case where the last function
- in the file is static. See the paragraph below for more comments
- on this situation.
-
- Finally, if we have a valid textlow for the current file, we run
- down the partial_symtab_list filling in previous texthighs that
- are still unknown. */
-
- if (pst->texthigh == 0 && last_function_name) {
- char *p;
- int n;
- struct minimal_symbol *minsym;
-
- p = strchr (last_function_name, ':');
- if (p == NULL)
- p = last_function_name;
- n = p - last_function_name;
- p = alloca (n + 1);
- strncpy (p, last_function_name, n);
- p[n] = 0;
-
- minsym = lookup_minimal_symbol (p, objfile);
-
- if (minsym) {
- pst->texthigh = SYMBOL_VALUE_ADDRESS (minsym) +
- (long) MSYMBOL_INFO (minsym);
- } else {
- /* This file ends with a static function, and it's
- difficult to imagine how hard it would be to track down
- the elf symbol. Luckily, most of the time no one will notice,
- since the next file will likely be compiled with -g, so
- the code below will copy the first fuction's start address
- back to our texthigh variable. (Also, if this file is the
- last one in a dynamically linked program, texthigh already
- has the right value.) If the next file isn't compiled
- with -g, then the last function in this file winds up owning
- all of the text space up to the next -g file, or the end (minus
- shared libraries). This only matters for single stepping,
- and even then it will still work, except that it will single
- step through all of the covered functions, instead of setting
- breakpoints around them as it usualy does. This makes it
- pretty slow, but at least it doesn't fail.
-
- We can fix this with a fairly big change to bfd, but we need
- to coordinate better with Cygnus if we want to do that. FIXME. */
+ 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)
+ p = last_function_name;
+ n = p - last_function_name;
+ p = alloca (n + 2);
+ strncpy (p, last_function_name, n);
+ p[n] = 0;
+
+ minsym = lookup_minimal_symbol (p, pst->filename, objfile);
+ if (minsym == NULL)
+ {
+ /* 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) + MSYMBOL_SIZE (minsym);
+
+ last_function_name = NULL;
}
- last_function_name = NULL;
- }
/* this test will be true if the last .o file is only data */
- if (pst->textlow == 0)
- /* This loses if the text section really starts at address zero
- (generally true when we are debugging a .o file, for example).
- That is why this whole thing is inside N_SO_ADDRESS_MAYBE_MISSING. */
+ 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. */
- /* 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. */
- if (pst->textlow) {
- ALL_OBJFILE_PSYMTABS (objfile, p1) {
- 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;
+ ALL_OBJFILE_PSYMTABS (objfile, p1)
+ {
+ 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. */
-#endif /* N_SO_ADDRESS_MAYBE_MISSING. */
+#endif /* SOFUN_ADDRESS_MAYBE_MISSING. */
pst->n_global_syms =
objfile->global_psymbols.next - (objfile->global_psymbols.list + pst->globals_offset);
{
pst->dependencies = (struct partial_symtab **)
obstack_alloc (&objfile->psymbol_obstack,
- number_dependencies * sizeof (struct partial_symtab *));
+ number_dependencies * sizeof (struct partial_symtab *));
memcpy (pst->dependencies, dependency_list,
- number_dependencies * sizeof (struct partial_symtab *));
+ 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);
+ 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->psymbol_obstack,
- sizeof (struct symloc));
- LDSYMOFF(subpst) =
- LDSYMLEN(subpst) =
- subpst->textlow =
- subpst->texthigh = 0;
+ (char *) obstack_alloc (&objfile->psymbol_obstack,
+ sizeof (struct symloc));
+ LDSYMOFF (subpst) =
+ LDSYMLEN (subpst) =
+ 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. */
+ shared by the entire set of include files. FIXME-someday. */
subpst->dependencies = (struct partial_symtab **)
obstack_alloc (&objfile->psymbol_obstack,
sizeof (struct partial_symtab *));
subpst->globals_offset =
subpst->n_global_syms =
- subpst->statics_offset =
- subpst->n_static_syms = 0;
+ subpst->statics_offset =
+ subpst->n_static_syms = 0;
subpst->readin = 0;
subpst->symtab = 0;
if (num_includes == 0
&& number_dependencies == 0
&& pst->n_global_syms == 0
- && pst->n_static_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. */
+ 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. */
- struct partial_symtab *prev_pst;
-
- /* First, snip it out of the psymtab chain */
-
- if (pst->objfile->psymtabs == pst)
- pst->objfile->psymtabs = pst->next;
- else
- for (prev_pst = pst->objfile->psymtabs; prev_pst; prev_pst = pst->next)
- if (prev_pst->next == pst)
- prev_pst->next = pst->next;
+ 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. */
- /* Next, put it on a free list for recycling */
-
- pst->next = pst->objfile->free_psymtabs;
- pst->objfile->free_psymtabs = pst;
+ discard_psymtab (pst);
/* Indicate that psymtab was thrown away. */
- pst = (struct partial_symtab *)NULL;
+ pst = (struct partial_symtab *) NULL;
}
return pst;
}
\f
static void
-dbx_psymtab_to_symtab_1 (pst)
- struct partial_symtab *pst;
+dbx_psymtab_to_symtab_1 (struct partial_symtab *pst)
{
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);
+ pst->filename);
return;
}
fputs_filtered ("and ", gdb_stdout);
wrap_here ("");
printf_filtered ("%s...", pst->dependencies[i]->filename);
- wrap_here (""); /* Flush output */
+ wrap_here (""); /* Flush output */
gdb_flush (gdb_stdout);
}
dbx_psymtab_to_symtab_1 (pst->dependencies[i]);
}
- if (LDSYMLEN(pst)) /* Otherwise it's a dummy */
+ if (LDSYMLEN (pst)) /* Otherwise it's a dummy */
{
/* Init stuff necessary for reading in symbols */
stabsread_init ();
Be verbose about it if the user wants that. */
static void
-dbx_psymtab_to_symtab (pst)
- struct partial_symtab *pst;
+dbx_psymtab_to_symtab (struct partial_symtab *pst)
{
bfd *sym_bfd;
if (pst->readin)
{
fprintf_unfiltered (gdb_stderr, "Psymtab for %s already read in. Shouldn't happen.\n",
- pst->filename);
+ pst->filename);
return;
}
- if (LDSYMLEN(pst) || pst->number_of_dependencies)
+ if (LDSYMLEN (pst) || pst->number_of_dependencies)
{
/* Print the message now, before reading the string table,
- to avoid disconcerting pauses. */
+ to avoid disconcerting pauses. */
if (info_verbose)
{
printf_filtered ("Reading in symbols for %s...", pst->filename);
}
/* Read in a defined section of a specific object file's symbols. */
-
+
static void
-read_ofile_symtab (pst)
- struct partial_symtab *pst;
+read_ofile_symtab (struct partial_symtab *pst)
{
register char *namestring;
- register struct internal_nlist *bufp;
+ register struct external_nlist *bufp;
+ struct internal_nlist nlist;
unsigned char type;
unsigned max_symnum;
register bfd *abfd;
struct section_offsets *section_offsets;
objfile = pst->objfile;
- sym_offset = LDSYMOFF(pst);
- sym_size = LDSYMLEN(pst);
+ sym_offset = LDSYMOFF (pst);
+ sym_size = LDSYMLEN (pst);
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;
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)
+ if (!processing_acc_compilation && sym_offset >= (int) symbol_size)
{
bfd_seek (symfile_bfd, sym_offset - symbol_size, SEEK_CUR);
fill_symbuf (abfd);
bufp = &symbuf[symbuf_idx++];
- SWAP_SYMBOL (bufp, abfd);
+ INTERNALIZE_SYMBOL (nlist, bufp, abfd);
+ OBJSTAT (objfile, n_stabs++);
SET_NAMESTRING ();
processing_gcc_compilation = 0;
- if (bufp->n_type == N_TEXT)
+ if (nlist.n_type == N_TEXT)
{
const char *tempstring = namestring;
}
/* Try to select a C++ demangling based on the compilation unit
- producer. */
+ producer. */
if (processing_gcc_compilation)
{
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. */
+ better not check the symbol before it. I'm not this can
+ happen, but it doesn't hurt to check for it. */
bfd_seek (symfile_bfd, sym_offset, SEEK_CUR);
processing_gcc_compilation = 0;
}
if (symbuf_idx == symbuf_end)
fill_symbuf (abfd);
bufp = &symbuf[symbuf_idx];
- if (bufp->n_type != (unsigned char)N_SO)
- error("First symbol in segment of executable not a source symbol");
+ if (bfd_h_get_8 (abfd, bufp->e_type) != N_SO)
+ error ("First symbol in segment of executable not a source symbol");
max_symnum = sym_size / symbol_size;
{
QUIT; /* Allow this to be interruptable */
if (symbuf_idx == symbuf_end)
- fill_symbuf(abfd);
+ fill_symbuf (abfd);
bufp = &symbuf[symbuf_idx++];
- SWAP_SYMBOL (bufp, abfd);
+ INTERNALIZE_SYMBOL (nlist, bufp, abfd);
+ OBJSTAT (objfile, n_stabs++);
- type = bufp->n_type;
+ type = bfd_h_get_8 (abfd, bufp->e_type);
SET_NAMESTRING ();
- if (type & N_STAB) {
- process_one_symbol (type, bufp->n_desc, bufp->n_value,
+ if (type & N_STAB)
+ {
+ 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_TEXT)
set_demangling_style (GNU_DEMANGLING_STYLE_STRING);
}
}
- else if (type & N_EXT || type == (unsigned char)N_TEXT
- || type == (unsigned char)N_NBTEXT
- ) {
+ else if (type & N_EXT || type == (unsigned char) N_TEXT
+ || 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
be satisfied in each file as it appears. So we skip this
section. */
;
- }
+ }
}
current_objfile = NULL;
if (last_source_start_addr == 0)
last_source_start_addr = text_offset;
- pst->symtab = end_symtab (text_offset + text_size, 0, 0, objfile,
- SECT_OFF_TEXT);
+ /* 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));
+
+ /* Process items which we had to "process_later" due to dependencies
+ on other stabs. */
+ process_now (objfile);
+
end_stabs ();
}
-
\f
+
/* This handles a single symbol from the symbol-file, building symbols
into a GDB symtab. It takes these arguments and an implicit argument.
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.
- All symbols that refer
- to memory locations need to be offset by these amounts.
+ 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. */
+ It is used in end_symtab. */
void
-process_one_symbol (type, desc, valu, name, section_offsets, objfile)
- int type, desc;
- CORE_ADDR valu;
- char *name;
- struct section_offsets *section_offsets;
- struct objfile *objfile;
+process_one_symbol (int type, int desc, CORE_ADDR valu, char *name,
+ struct section_offsets *section_offsets,
+ struct objfile *objfile)
{
#ifdef SUN_FIXED_LBRAC_BUG
/* If SUN_FIXED_LBRAC_BUG is defined, then it tells us whether we need
used to relocate these symbol types rather than SECTION_OFFSETS. */
static CORE_ADDR function_start_offset;
- /* If this is nonzero, N_LBRAC, N_RBRAC, and N_SLINE entries are relative
- to the function start address. */
- int block_address_function_relative;
-
/* 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;
N_STSYM or N_GSYM for SunOS4 acc; N_FUN for other compilers. */
static int function_stab_type = 0;
- /* 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 (objfile->obfd), "elf", 3))
- || (0 == strncmp (bfd_get_target (objfile->obfd), "som", 3))
- || (0 == strncmp (bfd_get_target (objfile->obfd), "coff", 4))
- || (0 == strncmp (bfd_get_target (objfile->obfd), "nlm", 3)));
-
if (!block_address_function_relative)
/* 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);
+ function_start_offset = ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile));
/* Something is wrong if we see real data before
seeing a source file name. */
- if (last_source_file == NULL && type != (unsigned char)N_SO)
+ if (last_source_file == NULL && type != (unsigned char) N_SO)
{
- /* 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 (if !IGNORE_SYMBOL (type)),
- but this should not be an error (). */
+ /* 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;
}
{
case N_FUN:
case N_FNAME:
+
+ if (*name == '\000')
+ {
+ /* This N_FUN marks the end of a function. This closes off the
+ current block. */
+ 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;
+ }
+
/* Relocate for dynamic loading */
- valu += ANOFFSET (section_offsets, SECT_OFF_TEXT);
+ valu += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile));
+#ifdef SMASH_TEXT_ADDRESS
+ SMASH_TEXT_ADDRESS (valu);
+#endif
goto define_a_symbol;
case N_LBRAC:
/* This "symbol" just indicates the start of an inner lexical
- context within a function. */
+ context within a function. */
+
+ /* Ignore extra outermost context from SunPRO cc and acc. */
+ if (n_opt_found && desc == 1)
+ break;
-#if defined(BLOCK_ADDRESS_ABSOLUTE)
- /* Relocate for dynamic loading (?). */
- valu += function_start_offset;
-#else
if (block_address_function_relative)
/* Relocate for Sun ELF acc fn-relative syms. */
valu += function_start_offset;
/* On most machines, the block addresses are relative to the
N_SO, the linker did not relocate them (sigh). */
valu += last_source_start_addr;
-#endif
#ifdef SUN_FIXED_LBRAC_BUG
- if (!SUN_FIXED_LBRAC_BUG && valu < last_pc_address) {
- /* Patch current LBRAC pc value to match last handy pc value */
- complain (&lbrac_complaint);
- valu = last_pc_address;
- }
+ if (!SUN_FIXED_LBRAC_BUG && valu < last_pc_address)
+ {
+ /* Patch current LBRAC pc value to match last handy pc value */
+ complain (&lbrac_complaint);
+ valu = last_pc_address;
+ }
#endif
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. */
+ context that was started with N_LBRAC. */
+
+ /* Ignore extra outermost context from SunPRO cc and acc. */
+ if (n_opt_found && desc == 1)
+ break;
-#if defined(BLOCK_ADDRESS_ABSOLUTE)
- /* Relocate for dynamic loading (?). */
- valu += function_start_offset;
-#else
if (block_address_function_relative)
/* Relocate for Sun ELF acc fn-relative syms. */
valu += function_start_offset;
/* On most machines, the block addresses are relative to the
N_SO, the linker did not relocate them (sigh). */
valu += last_source_start_addr;
-#endif
- new = pop_context();
+ new = pop_context ();
if (desc != new->depth)
complain (&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. */
+ 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. */
#if !defined (VARIABLES_INSIDE_BLOCK)
#define VARIABLES_INSIDE_BLOCK(desc, gcc_p) 0
#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))
+ if (!VARIABLES_INSIDE_BLOCK (desc, processing_gcc_compilation))
local_symbols = new->locals;
if (context_stack_depth
- > !VARIABLES_INSIDE_BLOCK(desc, processing_gcc_compilation))
+ > !VARIABLES_INSIDE_BLOCK (desc, processing_gcc_compilation))
{
/* This is not the outermost LBRAC...RBRAC pair in the function,
its local symbols preceded it, and are the ones just recovered
if (local_symbols != NULL)
{
/* Muzzle a compiler bug that makes end < start. (which
- compilers? Is this ever harmful?). */
+ compilers? Is this ever harmful?). */
if (new->start_addr > valu)
{
complain (&lbrac_rbrac_complaint);
within_function = 0;
}
- if (VARIABLES_INSIDE_BLOCK(desc, processing_gcc_compilation))
+ if (VARIABLES_INSIDE_BLOCK (desc, processing_gcc_compilation))
/* Now pop locals of block just finished. */
local_symbols = new->locals;
break;
case N_FN_SEQ:
/* This kind of symbol indicates the start of an object file. */
/* Relocate for dynamic loading */
- valu += ANOFFSET (section_offsets, SECT_OFF_TEXT);
+ valu += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile));
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. */
+ 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);
+ valu += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile));
n_opt_found = 0;
/* 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. */
+ Patch things up. */
if (previous_stab_code == (unsigned char) N_SO)
{
patch_subfile_names (current_subfile, name);
break; /* Ignore repeated SOs */
}
- end_symtab (valu, 0, 0, objfile, SECT_OFF_TEXT);
+ end_symtab (valu, objfile, SECT_OFF_TEXT (objfile));
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, 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.) */
+ 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);
+ valu += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile));
start_subfile (name, current_subfile->dirname);
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. */
+ 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;
+
#ifdef SUN_FIXED_LBRAC_BUG
last_pc_address = valu; /* Save for SunOS bug circumcision */
#endif
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. */
+ /* 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). */
+ /* 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;
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);
+ valu += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile));
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: abort();
- }
+ switch (type)
+ {
+ case N_STSYM:
+ goto case_N_STSYM;
+ case N_LCSYM:
+ goto case_N_LCSYM;
+ case N_ROSYM:
+ goto case_N_ROSYM;
+ default:
+ abort ();
+ }
}
case_N_STSYM: /* Static symbol in data seg */
case N_DSLINE: /* Source line number, data seg */
- valu += ANOFFSET (section_offsets, SECT_OFF_DATA);
+ valu += ANOFFSET (section_offsets, SECT_OFF_DATA (objfile));
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);
+ /* N_BROWS: overlaps with N_BSLINE */
+ valu += ANOFFSET (section_offsets, SECT_OFF_BSS (objfile));
goto define_a_symbol;
case_N_ROSYM: /* Static symbol in Read-only data seg */
- valu += ANOFFSET (section_offsets, SECT_OFF_RODATA);
+ valu += ANOFFSET (section_offsets, SECT_OFF_RODATA (objfile));
goto define_a_symbol;
case N_ENTRY: /* Alternate entry point */
/* Relocate for dynamic loading */
- valu += ANOFFSET (section_offsets, SECT_OFF_TEXT);
+ valu += ANOFFSET (section_offsets, SECT_OFF_TEXT (objfile));
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. */
+ /* 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_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??? */
complain (&unknown_symtype_complaint, local_hex_string (type));
/* FALLTHROUGH */
- /* The following symbol types don't need the address field relocated,
- since it is either unused, or is absolute. */
+ /* 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 'F':
function_stab_type = type;
+#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)))
+ valu =
+ find_stab_function_addr (name, last_source_file, objfile);
+#endif
+
#ifdef SUN_FIXED_LBRAC_BUG
/* The Sun acc compiler, under SunOS4, puts out
- functions with N_GSYM or N_STSYM. The problem is
- that the address of the symbol is no good (for N_GSYM
- it doesn't even attept an address; for N_STSYM it
- puts out an address but then it gets relocated
- relative to the data segment, not the text segment).
- Currently we can't fix this up later as we do for
- some types of symbol in scan_file_globals.
- Fortunately we do have a way of finding the address -
- we know that the value in last_pc_address is either
- the one we want (if we're dealing with the first
- function in an object file), or somewhere in the
- previous function. This means that we can use the
- minimal symbol table to get the address. */
-
- /* On solaris up to 2.2, the N_FUN stab gets relocated.
- On Solaris 2.3, ld no longer relocates stabs (which
- is good), and the N_FUN's value is now always zero.
- The following code can't deal with this, because
- last_pc_address depends on getting the address from a
- N_SLINE or some such and in Solaris those are function
- relative. Best fix is probably to create a Ttext.text symbol
- and handle this like Ddata.data and so on. */
-
- if (type == N_GSYM || type == N_STSYM)
+ functions with N_GSYM or N_STSYM. The problem is
+ that the address of the symbol is no good (for N_GSYM
+ it doesn't even attept an address; for N_STSYM it
+ puts out an address but then it gets relocated
+ relative to the data segment, not the text segment).
+ Currently we can't fix this up later as we do for
+ some types of symbol in scan_file_globals.
+ Fortunately we do have a way of finding the address -
+ we know that the value in last_pc_address is either
+ the one we want (if we're dealing with the first
+ function in an object file), or somewhere in the
+ previous function. This means that we can use the
+ minimal symbol table to get the address. */
+
+ /* Starting with release 3.0, the Sun acc compiler,
+ under SunOS4, puts out functions with N_FUN and a value
+ of zero. This gets relocated to the start of the text
+ segment of the module, which is no good either.
+ Under SunOS4 we can deal with this as N_SLINE and N_SO
+ entries contain valid absolute addresses.
+ Release 3.0 acc also puts out N_OPT entries, which makes
+ it possible to discern acc from cc or gcc. */
+
+ if (type == N_GSYM || type == N_STSYM
+ || (type == N_FUN
+ && n_opt_found && !block_address_function_relative))
{
struct minimal_symbol *m;
int l = colon_pos - name;
m = lookup_minimal_symbol_by_pc (last_pc_address);
- if (m && STREQN (SYMBOL_NAME (m), name, l))
+ if (m && STREQN (SYMBOL_NAME (m), name, l)
+ && SYMBOL_NAME (m)[l] == '\0')
/* last_pc_address was in this function */
valu = SYMBOL_VALUE (m);
- else if (m && STREQN (SYMBOL_NAME (m+1), name, l))
+ else if (m && SYMBOL_NAME (m + 1)
+ && STREQN (SYMBOL_NAME (m + 1), name, l)
+ && SYMBOL_NAME (m + 1)[l] == '\0')
/* last_pc_address was in last function */
- valu = SYMBOL_VALUE (m+1);
+ valu = SYMBOL_VALUE (m + 1);
else
/* Not found - use last_pc_address (for finish_block) */
valu = last_pc_address;
Solaris 2.0, these addresses are just absolute, or
relative to the N_SO, depending on
BLOCK_ADDRESS_ABSOLUTE. */
- function_start_offset = valu;
+ function_start_offset = valu;
within_function = 1;
+
+ if (context_stack_depth > 1)
+ {
+ complain (&lbrac_unmatched_complaint, symnum);
+ break;
+ }
+
if (context_stack_depth > 0)
{
new = pop_context ();
finish_block (new->name, &local_symbols, new->old_blocks,
new->start_addr, valu, objfile);
}
- /* Stack must be empty now. */
- if (context_stack_depth != 0)
- complain (&lbrac_unmatched_complaint, symnum);
new = push_context (0, valu);
new->name = define_symbol (valu, name, desc, type, objfile);
}
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 */
+ /* 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)
{
if (STREQ (name, GCC2_COMPILED_FLAG_SYMBOL))
{
processing_gcc_compilation = 2;
-#if 1 /* Works, but is experimental. -fnf */
+#if 1 /* Works, but is experimental. -fnf */
if (AUTO_DEMANGLING)
{
set_demangling_style (GNU_DEMANGLING_STYLE_STRING);
}
break;
- /* The following symbol types can be ignored. */
- case N_OBJ: /* Solaris 2: Object file dir and name */
- /* N_UNDF: Solaris 2: file separator mark */
- /* N_UNDF: -- we will never encounter it, since we only process one
- file's symbols at once. */
+ /* The following symbol types can be ignored. */
+ case N_OBJ: /* Solaris 2: Object file dir and name */
+ /* 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_MAIN: /* Name of main routine. */
+ 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] == '#')
+ {
+ /* 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;
}
\f
-/* FIXME: The only difference between this and elfstab_build_psymtabs is
- the call to install_minimal_symbols for elf. If the differences are
- really that small, the code should be shared. */
+/* 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. */
/* Scan and build partial symbols for an coff symbol file.
The coff file has already been processed to get its minimal symbols.
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).
- STABOFFSET and STABSIZE define the location in OBJFILE where the .stab
- section exists.
+ 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.
adjusted for coff details. */
void
-coffstab_build_psymtabs (objfile, section_offsets, mainline,
- staboffset, stabsize,
- stabstroffset, stabstrsize)
- struct objfile *objfile;
- struct section_offsets *section_offsets;
- int mainline;
- file_ptr staboffset;
- unsigned int stabsize;
- file_ptr stabstroffset;
- unsigned int stabstrsize;
+coffstab_build_psymtabs (struct objfile *objfile, int mainline,
+ CORE_ADDR textaddr, unsigned int textsize,
+ struct stab_section_list *stabsects,
+ file_ptr stabstroffset, unsigned int stabstrsize)
{
int val;
bfd *sym_bfd = objfile->obfd;
char *name = bfd_get_filename (sym_bfd);
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 = (struct dbx_symfile_info *) objfile->sym_stab_info;
+ info = objfile->sym_stab_info;
- DBX_TEXT_SECT (objfile) = bfd_get_section_by_name (sym_bfd, ".text");
- if (!DBX_TEXT_SECT (objfile))
- error ("Can't find .text section in symbol file");
+ DBX_TEXT_ADDR (objfile) = textaddr;
+ DBX_TEXT_SIZE (objfile) = textsize;
#define COFF_STABS_SYMBOL_SIZE 12 /* XXX FIXME XXX */
- DBX_SYMBOL_SIZE (objfile) = COFF_STABS_SYMBOL_SIZE;
- DBX_SYMCOUNT (objfile) = stabsize / DBX_SYMBOL_SIZE (objfile);
+ DBX_SYMBOL_SIZE (objfile) = COFF_STABS_SYMBOL_SIZE;
DBX_STRINGTAB_SIZE (objfile) = stabstrsize;
- DBX_SYMTAB_OFFSET (objfile) = staboffset;
-
+
if (stabstrsize > bfd_get_size (sym_bfd))
error ("ridiculous string table size: %d bytes", stabstrsize);
DBX_STRINGTAB (objfile) = (char *)
- obstack_alloc (&objfile->psymbol_obstack, stabstrsize+1);
+ obstack_alloc (&objfile->psymbol_obstack, stabstrsize + 1);
+ OBJSTAT (objfile, sz_strtab += stabstrsize + 1);
/* Now read in the string table in one big gulp. */
/* 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. */
- dbx_symfile_read (objfile, section_offsets, 0);
+ if (stabsects->next == NULL)
+ {
+ stabsize = bfd_section_size (sym_bfd, stabsects->section);
+ DBX_SYMCOUNT (objfile) = stabsize / DBX_SYMBOL_SIZE (objfile);
+ DBX_SYMTAB_OFFSET (objfile) = stabsects->section->filepos;
+ }
+ else
+ {
+ struct stab_section_list *stabsect;
+
+ DBX_SYMCOUNT (objfile) = 0;
+ for (stabsect = stabsects; stabsect != NULL; stabsect = stabsect->next)
+ {
+ stabsize = bfd_section_size (sym_bfd, stabsect->section);
+ DBX_SYMCOUNT (objfile) += stabsize / DBX_SYMBOL_SIZE (objfile);
+ }
+
+ DBX_SYMTAB_OFFSET (objfile) = stabsects->section->filepos;
+
+ symbuf_sections = stabsects->next;
+ symbuf_left = bfd_section_size (sym_bfd, stabsects->section);
+ symbuf_read = 0;
+ }
+
+ dbx_symfile_read (objfile, 0);
}
\f
/* Scan and build partial symbols for an ELF symbol file.
adjusted for elf details. */
void
-elfstab_build_psymtabs (objfile, section_offsets, mainline,
- staboffset, stabsize,
- stabstroffset, stabstrsize)
- struct objfile *objfile;
- struct section_offsets *section_offsets;
- int mainline;
- file_ptr staboffset;
- unsigned int stabsize;
- file_ptr stabstroffset;
- unsigned int stabstrsize;
+elfstab_build_psymtabs (struct objfile *objfile, int mainline,
+ file_ptr staboffset, unsigned int stabsize,
+ file_ptr stabstroffset, unsigned int stabstrsize)
{
int val;
bfd *sym_bfd = objfile->obfd;
/* 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 = (struct dbx_symfile_info *) objfile->sym_stab_info;
+ info = objfile->sym_stab_info;
- DBX_TEXT_SECT (objfile) = bfd_get_section_by_name (sym_bfd, ".text");
- if (!DBX_TEXT_SECT (objfile))
- error ("Can't find .text section in symbol file");
+ /* Find the first and last text address. dbx_symfile_read seems to
+ want this. */
+ find_text_range (sym_bfd, objfile);
#define ELF_STABS_SYMBOL_SIZE 12 /* XXX FIXME XXX */
- DBX_SYMBOL_SIZE (objfile) = ELF_STABS_SYMBOL_SIZE;
- DBX_SYMCOUNT (objfile) = stabsize / DBX_SYMBOL_SIZE (objfile);
+ DBX_SYMBOL_SIZE (objfile) = ELF_STABS_SYMBOL_SIZE;
+ DBX_SYMCOUNT (objfile) = stabsize / DBX_SYMBOL_SIZE (objfile);
DBX_STRINGTAB_SIZE (objfile) = stabstrsize;
- DBX_SYMTAB_OFFSET (objfile) = staboffset;
-
+ DBX_SYMTAB_OFFSET (objfile) = staboffset;
+
if (stabstrsize > bfd_get_size (sym_bfd))
error ("ridiculous string table size: %d bytes", stabstrsize);
DBX_STRINGTAB (objfile) = (char *)
- obstack_alloc (&objfile->psymbol_obstack, stabstrsize+1);
+ obstack_alloc (&objfile->psymbol_obstack, stabstrsize + 1);
+ OBJSTAT (objfile, sz_strtab += stabstrsize + 1);
/* Now read in the string table in one big gulp. */
/* 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 (objfile, section_offsets, 0);
+ dbx_symfile_read (objfile, 0);
}
\f
/* Scan and build partial symbols for a file with special sections for stabs
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).
+ 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).
+ 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. */
void
-stabsect_build_psymtabs (objfile, section_offsets, mainline, stab_name,
- stabstr_name)
- struct objfile *objfile;
- struct section_offsets *section_offsets;
- int mainline;
- char *stab_name;
- char *stabstr_name;
+stabsect_build_psymtabs (struct objfile *objfile, int mainline, char *stab_name,
+ char *stabstr_name, char *text_name)
{
int val;
bfd *sym_bfd = objfile->obfd;
char *name = bfd_get_filename (sym_bfd);
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);
error ("stabsect_build_psymtabs: Found stabs (%s), but not string section (%s)",
stab_name, stabstr_name);
- DBX_SYMFILE_INFO (objfile) = (PTR) xmalloc (sizeof (struct dbx_symfile_info));
- memset (DBX_SYMFILE_INFO (objfile), 0, sizeof (struct dbx_symfile_info));
+ 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_SECT (objfile) = bfd_get_section_by_name (sym_bfd, ".text");
- if (!DBX_TEXT_SECT (objfile))
- error ("Can't find .text section in symbol file");
+ 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) = bfd_section_vma (sym_bfd, text_sect);
+ DBX_TEXT_SIZE (objfile) = bfd_section_size (sym_bfd, text_sect);
- DBX_SYMBOL_SIZE (objfile) = sizeof (struct external_nlist);
- DBX_SYMCOUNT (objfile) = bfd_section_size (sym_bfd, stabsect)
+ DBX_SYMBOL_SIZE (objfile) = sizeof (struct external_nlist);
+ DBX_SYMCOUNT (objfile) = bfd_section_size (sym_bfd, stabsect)
/ DBX_SYMBOL_SIZE (objfile);
DBX_STRINGTAB_SIZE (objfile) = bfd_section_size (sym_bfd, stabstrsect);
- DBX_SYMTAB_OFFSET (objfile) = stabsect->filepos; /* XXX - FIXME: POKING INSIDE BFD DATA STRUCTURES */
-
+ DBX_SYMTAB_OFFSET (objfile) = stabsect->filepos; /* XXX - FIXME: POKING INSIDE BFD DATA STRUCTURES */
+
if (DBX_STRINGTAB_SIZE (objfile) > bfd_get_size (sym_bfd))
error ("ridiculous string table size: %d bytes", DBX_STRINGTAB_SIZE (objfile));
DBX_STRINGTAB (objfile) = (char *)
obstack_alloc (&objfile->psymbol_obstack, DBX_STRINGTAB_SIZE (objfile) + 1);
+ OBJSTAT (objfile, sz_strtab += DBX_STRINGTAB_SIZE (objfile) + 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), /* input buffer */
- 0, /* offset into section */
- DBX_STRINGTAB_SIZE (objfile)); /* amount to read */
+ val = bfd_get_section_contents (sym_bfd, /* bfd */
+ stabstrsect, /* bfd section */
+ DBX_STRINGTAB (objfile), /* input buffer */
+ 0, /* offset into section */
+ DBX_STRINGTAB_SIZE (objfile)); /* amount to read */
if (!val)
perror_with_name (name);
/* Now, do an incremental load */
processing_acc_compilation = 1;
- dbx_symfile_read (objfile, section_offsets, 0);
-}
-\f
-/* Scan and build partial symbols for a PA symbol file.
- This PA file has already been processed to get its minimal symbols.
-
- 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).
-
- */
-
-void
-pastab_build_psymtabs (objfile, section_offsets, mainline)
- struct objfile *objfile;
- struct section_offsets *section_offsets;
- int mainline;
-{
- free_header_files ();
- init_header_files ();
-
- /* This is needed to debug objects assembled with gas2. */
- processing_acc_compilation = 1;
-
- /* In a PA file, we've already installed the minimal symbols that came
- from the PA (non-stab) symbol table, so always act like an
- incremental load here. */
-
- dbx_symfile_read (objfile, section_offsets, mainline);
-}
-\f
-/* Parse the user's idea of an offset for dynamic linking, into our idea
- of how to represent it for fast symbol reading. */
-
-static struct section_offsets *
-dbx_symfile_offsets (objfile, addr)
- struct objfile *objfile;
- CORE_ADDR addr;
-{
- struct section_offsets *section_offsets;
- int i;
-
- objfile->num_sections = SECT_OFF_MAX;
- section_offsets = (struct section_offsets *)
- obstack_alloc (&objfile -> psymbol_obstack,
- sizeof (struct section_offsets)
- + sizeof (section_offsets->offsets) * (SECT_OFF_MAX-1));
-
- for (i = 0; i < SECT_OFF_MAX; i++)
- ANOFFSET (section_offsets, i) = addr;
-
- return section_offsets;
+ dbx_symfile_read (objfile, 0);
}
\f
static struct sym_fns aout_sym_fns =
{
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 */
- dbx_symfile_offsets, /* sym_offsets: parse user's offsets to internal form */
- NULL /* next: pointer to next struct sym_fns */
+ 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 /* next: pointer to next struct sym_fns */
};
void
-_initialize_dbxread ()
+_initialize_dbxread (void)
{
- add_symtab_fns(&aout_sym_fns);
+ add_symtab_fns (&aout_sym_fns);
}