/* Read NLM (NetWare Loadable Module) format executable files for GDB.
- Copyright 1993 Free Software Foundation, Inc.
+ Copyright 1993, 1994, 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. */
#include "defs.h"
+#include "gdb_string.h"
#include "bfd.h"
#include "symtab.h"
#include "symfile.h"
#include "buildsym.h"
#include "stabsread.h"
-static void
-nlm_new_init PARAMS ((struct objfile *));
-
-static void
-nlm_symfile_init PARAMS ((struct objfile *));
-
-static void
-nlm_symfile_read PARAMS ((struct objfile *, struct section_offsets *, int));
+extern void _initialize_nlmread (void);
-static void
-nlm_symfile_finish PARAMS ((struct objfile *));
+static void nlm_new_init (struct objfile *);
-static void
-nlm_symtab_read PARAMS ((bfd *, CORE_ADDR, struct objfile *));
+static void nlm_symfile_init (struct objfile *);
-static struct section_offsets *
-nlm_symfile_offsets PARAMS ((struct objfile *, CORE_ADDR));
+static void nlm_symfile_read (struct objfile *, int);
-static void
-record_minimal_symbol PARAMS ((char *, CORE_ADDR, enum minimal_symbol_type,
- struct objfile *));
+static void nlm_symfile_finish (struct objfile *);
+static void nlm_symtab_read (bfd *, CORE_ADDR, struct objfile *);
/* Initialize anything that needs initializing when a completely new symbol
file is specified (not just adding some symbols from another file, e.g. a
file at some point in the near future. */
static void
-nlm_new_init (ignore)
- struct objfile *ignore;
+nlm_new_init (struct objfile *ignore)
{
stabsread_new_init ();
buildsym_new_init ();
just a stub. */
static void
-nlm_symfile_init (ignore)
- struct objfile *ignore;
+nlm_symfile_init (struct objfile *ignore)
{
}
-static void
-record_minimal_symbol (name, address, ms_type, objfile)
- char *name;
- CORE_ADDR address;
- enum minimal_symbol_type ms_type;
- struct objfile *objfile;
-{
- name = obsavestring (name, strlen (name), &objfile -> symbol_obstack);
- prim_record_minimal_symbol (name, address, ms_type);
-}
-
-
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- nlm_symtab_read -- read the symbol table of an NLM file
+ nlm_symtab_read -- read the symbol table of an NLM file
-SYNOPSIS
+ SYNOPSIS
- void nlm_symtab_read (bfd *abfd, CORE_ADDR addr,
- struct objfile *objfile)
+ void nlm_symtab_read (bfd *abfd, CORE_ADDR addr,
+ struct objfile *objfile)
-DESCRIPTION
+ DESCRIPTION
- Given an open bfd, a base address to relocate symbols to, and a
- flag that specifies whether or not this bfd is for an executable
- or not (may be shared library for example), add all the global
- function and data symbols to the minimal symbol table.
-*/
+ Given an open bfd, a base address to relocate symbols to, and a
+ flag that specifies whether or not this bfd is for an executable
+ or not (may be shared library for example), add all the global
+ function and data symbols to the minimal symbol table.
+ */
static void
-nlm_symtab_read (abfd, addr, objfile)
- bfd *abfd;
- CORE_ADDR addr;
- struct objfile *objfile;
+nlm_symtab_read (bfd *abfd, CORE_ADDR addr, struct objfile *objfile)
{
- unsigned int storage_needed;
+ long storage_needed;
asymbol *sym;
asymbol **symbol_table;
- unsigned int number_of_symbols;
- unsigned int i;
+ long number_of_symbols;
+ long i;
struct cleanup *back_to;
CORE_ADDR symaddr;
enum minimal_symbol_type ms_type;
-
- storage_needed = get_symtab_upper_bound (abfd);
+
+ storage_needed = bfd_get_symtab_upper_bound (abfd);
+ if (storage_needed < 0)
+ error ("Can't read symbols from %s: %s", bfd_get_filename (abfd),
+ bfd_errmsg (bfd_get_error ()));
if (storage_needed > 0)
{
symbol_table = (asymbol **) xmalloc (storage_needed);
- back_to = make_cleanup (free, symbol_table);
- number_of_symbols = bfd_canonicalize_symtab (abfd, symbol_table);
-
+ back_to = make_cleanup (xfree, symbol_table);
+ number_of_symbols = bfd_canonicalize_symtab (abfd, symbol_table);
+ if (number_of_symbols < 0)
+ error ("Can't read symbols from %s: %s", bfd_get_filename (abfd),
+ bfd_errmsg (bfd_get_error ()));
+
for (i = 0; i < number_of_symbols; i++)
{
sym = symbol_table[i];
- if (sym -> flags & BSF_GLOBAL)
+ if ( /*sym -> flags & BSF_GLOBAL */ 1)
{
/* Bfd symbols are section relative. */
- symaddr = sym -> value + sym -> section -> vma;
+ symaddr = sym->value + sym->section->vma;
/* Relocate all non-absolute symbols by base address. */
- if (sym -> section != &bfd_abs_section)
- {
- symaddr += addr;
- }
+ if (sym->section != &bfd_abs_section)
+ symaddr += addr;
/* For non-absolute symbols, use the type of the section
- they are relative to, to intuit text/data. Bfd provides
- no way of figuring this out for absolute symbols. */
- if (sym -> section -> flags & SEC_CODE)
- {
- ms_type = mst_text;
- }
- else if (sym -> section -> flags & SEC_DATA)
- {
- ms_type = mst_data;
- }
+ they are relative to, to intuit text/data. BFD provides
+ no way of figuring this out for absolute symbols. */
+ if (sym->section->flags & SEC_CODE)
+ ms_type = mst_text;
+ else if (sym->section->flags & SEC_DATA)
+ ms_type = mst_data;
else
- {
- ms_type = mst_unknown;
- }
- record_minimal_symbol ((char *) sym -> name, symaddr, ms_type,
- objfile);
+ ms_type = mst_unknown;
+
+ prim_record_minimal_symbol (sym->name, symaddr, ms_type,
+ objfile);
}
}
do_cleanups (back_to);
is not currently used. */
static void
-nlm_symfile_read (objfile, section_offsets, mainline)
- struct objfile *objfile;
- struct section_offsets *section_offsets;
- int mainline;
+nlm_symfile_read (struct objfile *objfile, int mainline)
{
- bfd *abfd = objfile -> obfd;
+ bfd *abfd = objfile->obfd;
struct cleanup *back_to;
CORE_ADDR offset;
+ struct symbol *mainsym;
init_minimal_symbol_collection ();
- back_to = make_cleanup (discard_minimal_symbols, 0);
+ back_to = make_cleanup_discard_minimal_symbols ();
/* FIXME, should take a section_offsets param, not just an offset. */
- offset = ANOFFSET (section_offsets, 0);
+ offset = ANOFFSET (objfile->section_offsets, 0);
/* Process the NLM export records, which become the bfd's canonical symbol
table. */
nlm_symtab_read (abfd, offset, objfile);
- /* FIXME: We could locate and read the optional native debugging format
- here and add the symbols to the minimal symbol table. */
+ stabsect_build_psymtabs (objfile, mainline, ".stab",
+ ".stabstr", ".text");
+
+ mainsym = lookup_symbol ("main", NULL, VAR_NAMESPACE, NULL, NULL);
- if (!have_partial_symbols ())
+ if (mainsym
+ && SYMBOL_CLASS (mainsym) == LOC_BLOCK)
{
- wrap_here ("");
- printf_filtered ("(no debugging symbols found)...");
- wrap_here ("");
+ objfile->ei.main_func_lowpc = BLOCK_START (SYMBOL_BLOCK_VALUE (mainsym));
+ objfile->ei.main_func_highpc = BLOCK_END (SYMBOL_BLOCK_VALUE (mainsym));
}
+ /* FIXME: We could locate and read the optional native debugging format
+ here and add the symbols to the minimal symbol table. */
+
/* Install any minimal symbols that have been collected as the current
minimal symbols for this objfile. */
objfile struct from the global list of known objfiles. */
static void
-nlm_symfile_finish (objfile)
- struct objfile *objfile;
+nlm_symfile_finish (struct objfile *objfile)
{
- if (objfile -> sym_private != NULL)
- {
- mfree (objfile -> md, objfile -> sym_private);
- }
-}
-
-/* NLM specific parsing routine for section offsets.
- FIXME: This may or may not be necessary. All the symbol readers seem
- to have similar code. See if it can be generalized and moved elsewhere. */
-
-static
-struct section_offsets *
-nlm_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++)
+ if (objfile->sym_private != NULL)
{
- ANOFFSET (section_offsets, i) = addr;
+ mfree (objfile->md, objfile->sym_private);
}
-
- return (section_offsets);
}
-\f
/* Register that we are able to handle NLM file format. */
static struct sym_fns nlm_sym_fns =
{
bfd_target_nlm_flavour,
- nlm_new_init, /* sym_new_init: init anything gbl to entire symtab */
- nlm_symfile_init, /* sym_init: read initial info, setup for sym_read() */
- nlm_symfile_read, /* sym_read: read a symbol file into symtab */
- nlm_symfile_finish, /* sym_finish: finished with file, cleanup */
- nlm_symfile_offsets, /* sym_offsets: Translate ext. to int. relocation */
- NULL /* next: pointer to next struct sym_fns */
+ nlm_new_init, /* sym_new_init: init anything gbl to entire symtab */
+ nlm_symfile_init, /* sym_init: read initial info, setup for sym_read() */
+ nlm_symfile_read, /* sym_read: read a symbol file into symtab */
+ nlm_symfile_finish, /* sym_finish: finished with file, cleanup */
+ default_symfile_offsets, /* sym_offsets: Translate ext. to int. relocation */
+ NULL /* next: pointer to next struct sym_fns */
};
void
-_initialize_nlmread ()
+_initialize_nlmread (void)
{
add_symtab_fns (&nlm_sym_fns);
}
projects / binutils.git / blobdiff