* dwarf2read.c (try_open_dwo_file): Use gdb_bfd_ref and

	gdb_bfd_unref.
	(free_dwo_file): Use gdb_bfd_unref.
	* cli/cli-dump.c: Include gdb_bfd.h.
	(bfd_openw_with_cleanup): Use gdb_bfd_ref.
	(bfd_openr_with_cleanup): Likewise.
	* windows-nat.c (windows_make_so): Use gdb_bfd_ref,
	gdb_bfd_unref.
	* utils.c: Include gdb_bfd.h.
	(do_bfd_close_cleanup): Use gdb_bfd_unref.
	* symfile.c: Include gdb_bfd.h.
	(separate_debug_file_exists): Use gdb_bfd_unref.
	(bfd_open_maybe_remote): Use gdb_bfd_ref.
	(symfile_bfd_open): Use gdb_bfd_ref, gdb_bfd_unref.
	(generic_load): Use gdb_bfd_ref.
	(reread_symbols): Use gdb_bfd_unref.
	* symfile-mem.c: Include gdb_bfd.h.
	(symbol_file_add_from_memory): Use make_cleanup_bfd_close.
	* spu-linux-nat.c (spu_bfd_open): Use gdb_bfd_ref, gdb_bfd_unref.
	* solib.c: Include gdb_bfd.h.
	(solib_bfd_fopen): Use gdb_bfd_ref.
	(solib_bfd_open): Use gdb_bfd_unref.
	(free_so_symbols): Use gdb_bfd_unref.
	(reload_shared_libraries_1): Use gdb_bfd_unref.
	* solib-spu.c: Include gdb_bfd.h.
	(spu_bfd_fopen): Use gdb_bfd_ref, gdb_bfd_unref.
	* solib-pa64.c (pa64_solib_create_inferior_hook): Use gdb_bfd_ref,
	gdb_bfd_unref.
	* solib-frv.c: Include gdb_bfd.h.
	(enable_break2): Use gdb_bfd_unref.
	* solib-dsbt.c: Include gdb_bfd.h.
	(enable_break2): Use gdb_bfd_unref.
	* solib-darwin.c: Include gdb_bfd.h.
	(darwin_solib_get_all_image_info_addr_at_init): Use gdb_bfd_ref,
	gdb_bfd_unref.
	(darwin_bfd_open): Use gdb_bfd_unref.
	* rs6000-nat.c (add_vmap): Use gdb_bfd_ref, gdb_bfd_unref.
	* remote-mips.c: Include gdb_bfd.h.
	(mips_load_srec): Use gdb_bfd_ref.
	(pmon_load_fast): Use gdb_bfd_ref.
	* remote-m32r-sdi.c: Include gdb_bfd.h.
	(m32r_load): Use gdb_bfd_ref.
	* record.c: Include gdb_bfd.h.
	(record_save_cleanups): Use gdb_bfd_unref.
	(cmd_record_save): Use gdb_bfd_unref.
	* procfs.c (insert_dbx_link_bpt_in_file): Use gdb_bfd_ref,
	gdb_bfd_unref.
	* objfiles.h (gdb_bfd_close_or_warn): Remove.
	(gdb_bfd_ref, gdb_bfd_unref): Move to gdb_bfd.h.
	* objfiles.c: Include gdb_bfd.h.
	(free_objfile): Use gdb_bfd_unref.
	(gdb_bfd_close_or_warn, gdb_bfd_ref, gdb_bfd_unref): Move to
	gdb_bfd.c.
	* machoread.c (macho_add_oso_symfile): Use gdb_bfd_unref.
	(macho_symfile_read_all_oso): Use gdb_bfd_ref, gdb_bfd_unref.
	(macho_check_dsym): Likewise.
	* m32r-rom.c: Include gdb_bfd.h.
	(m32r_load): Use gdb_bfd_ref.
	(m32r_upload_command): Use gdb_bfd_ref.
	* jit.c: Include gdb_bfd.h.
	(jit_bfd_try_read_symtab): Use gdb_bfd_ref, gdb_bfd_unref.
	* gdb_bfd.h: New file.
	* gdb_bfd.c: New file.
	* gcore.c: Include gdb_bfd.h.
	(create_gcore_bfd): Use gdb_bfd_ref.
	(do_bfd_delete_cleanup): Use gdb_bfd_unref.
	(gcore_command): Use gdb_bfd_unref.
	* exec.c: Include gdb_bfd.h.
	(exec_close): Use gdb_bfd_unref.
	(exec_close_1): Use gdb_bfd_unref.
	(exec_file_attach): Use gdb_bfd_ref.
	* elfread.c: Include gdb_bfd.h.
	(build_id_verify): Use gdb_bfd_unref.
	* dsrec.c: Include gdb_bfd.h.
	(load_srec): Use gdb_bfd_ref.
	* corelow.c: Include gdb_bfd.h.
	(core_close): Use gdb_bfd_unref.
	(core_open): Use gdb_bfd_ref.
	* bfd-target.c: Include gdb_bfd.h.
	(target_bfd_xclose): Use gdb_bfd_unref.
	(target_bfd_reopen): Use gdb_bfd_ref.
	* Makefile.in (SFILES): Add gdb_bfd.c.
	(HFILES_NO_SRCDIR): Add gdb_bfd.h.
	(COMMON_OBS): Add gdb_bfd.o.

1 files changed, 90 insertions, 0 deletions

diff --git a/gdb/gdb_bfd.c b/gdb/gdb_bfd.c
new file mode 100644
index 00000000000..160e9e6278f
--- /dev/null
+++ b/gdb/gdb_bfd.c
@@ -0,0 +1,90 @@
+/* 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);
+}