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/* Read a symbol table in MIPS' format (Third-Eye).
Copyright 1986, 1987, 1989, 1990, 1991, 1992, 1993 Free Software
Foundation, Inc.
Contributed by Alessandro Forin (af@cs.cmu.edu) at CMU. Major work
by Per Bothner, John Gilmore and Ian Lance Taylor at Cygnus Support.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Read symbols from an ECOFF file. Most of the work is done in
mdebugread.c. */
#include "defs.h"
#include "symtab.h"
#include "symfile.h"
#include "objfiles.h"
#include "buildsym.h"
#include "stabsread.h"
#include "gdb-stabs.h"
#include "coff/internal.h"
#include "coff/ecoff.h"
#include "libcoff.h" /* Private BFD COFF information. */
#include "libecoff.h" /* Private BFD ECOFF information. */
static void
mipscoff_new_init PARAMS ((struct objfile *));
static void
mipscoff_symfile_init PARAMS ((struct objfile *));
static void
mipscoff_symfile_read PARAMS ((struct objfile *, struct section_offsets *,
int));
static void
mipscoff_symfile_finish PARAMS ((struct objfile *));
static struct section_offsets *
mipscoff_symfile_offsets PARAMS ((struct objfile *, CORE_ADDR));
/* Initialize anything that needs initializing when a completely new
symbol file is specified (not just adding some symbols from another
file, e.g. a shared library). */
extern CORE_ADDR sigtramp_address;
static void
mipscoff_new_init (ignore)
struct objfile *ignore;
{
sigtramp_address = 0;
stabsread_new_init ();
buildsym_new_init ();
}
/* Initialize to read a symbol file (nothing to do). */
static void
mipscoff_symfile_init (objfile)
struct objfile *objfile;
{
}
/* Read a symbol file from a file. */
static void
mipscoff_symfile_read (objfile, section_offsets, mainline)
struct objfile *objfile;
struct section_offsets *section_offsets;
int mainline;
{
bfd *abfd = objfile->obfd;
struct cleanup * back_to;
init_minimal_symbol_collection ();
back_to = make_cleanup (discard_minimal_symbols, 0);
/* Now that the executable file is positioned at symbol table,
process it and define symbols accordingly. */
if (ecoff_slurp_symbolic_info (abfd) == false)
error ("Error reading symbol table: %s", bfd_errmsg (bfd_error));
mdebug_build_psymtabs (objfile, &ecoff_backend (abfd)->debug_swap,
&ecoff_data (abfd)->debug_info, section_offsets);
/* Install any minimal symbols that have been collected as the current
minimal symbols for this objfile. */
install_minimal_symbols (objfile);
do_cleanups (back_to);
}
/* Perform any local cleanups required when we are done with a
particular objfile. */
static void
mipscoff_symfile_finish (objfile)
struct objfile *objfile;
{
}
/* Fake up identical offsets for all sections. */
static struct section_offsets *
mipscoff_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;
}
/* Initialization */
static struct sym_fns ecoff_sym_fns =
{
bfd_target_ecoff_flavour,
mipscoff_new_init, /* sym_new_init: init anything gbl to entire symtab */
mipscoff_symfile_init, /* sym_init: read initial info, setup for sym_read() */
mipscoff_symfile_read, /* sym_read: read a symbol file into symtab */
mipscoff_symfile_finish, /* sym_finish: finished with file, cleanup */
mipscoff_symfile_offsets, /* sym_offsets: dummy FIXME til implem sym reloc */
NULL /* next: pointer to next struct sym_fns */
};
void
_initialize_mipsread ()
{
add_symtab_fns (&ecoff_sym_fns);
}
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