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/* Definitions for BFD wrappers used by GDB.
Copyright (C) 2011
Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 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, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "gdb_bfd.h"
#include "gdb_assert.h"
/* Close ABFD, and warn if that fails. */
static int
gdb_bfd_close_or_warn (struct bfd *abfd)
{
int ret;
char *name = bfd_get_filename (abfd);
ret = bfd_close (abfd);
if (!ret)
warning (_("cannot close \"%s\": %s"),
name, bfd_errmsg (bfd_get_error ()));
return ret;
}
/* Add reference to ABFD. Returns ABFD. */
struct bfd *
gdb_bfd_ref (struct bfd *abfd)
{
int *p_refcount;
if (abfd == NULL)
return NULL;
p_refcount = bfd_usrdata (abfd);
if (p_refcount != NULL)
{
*p_refcount += 1;
return abfd;
}
p_refcount = xmalloc (sizeof (*p_refcount));
*p_refcount = 1;
bfd_usrdata (abfd) = p_refcount;
return abfd;
}
/* Unreference and possibly close ABFD. */
void
gdb_bfd_unref (struct bfd *abfd)
{
int *p_refcount;
char *name;
if (abfd == NULL)
return;
p_refcount = bfd_usrdata (abfd);
gdb_assert (*p_refcount >= 1);
*p_refcount -= 1;
if (*p_refcount > 0)
return;
xfree (p_refcount);
bfd_usrdata (abfd) = NULL; /* Paranoia. */
name = bfd_get_filename (abfd);
gdb_bfd_close_or_warn (abfd);
}
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