Re: Solibs and objfile BFD ownership

[Paul Pluzhnikov <ppluzhnikov at google dot com>]

On Thu, Jul 30, 2009 at 9:15 AM, Tom Tromey<tromey@redhat.com> wrote:

> It seems to me that there are not many choices.  Either we must pick a
> single owner, pick an order, implement something like reference counting
> for BFDs, or have a separate function to clean up the BFDs.

Right.

Conveniently, 'struct bfd' has usrdata, which is unused in GDB.
Here is a stab at reference-counted sharing of BFDs between solib and
objfile.

-- 
Paul Pluzhnikov


2009-08-03  Paul Pluzhnikov  <ppluzhnikov@google.com>

	* objfiles.h (OBJF_KEEPBFD): Delete.
	(gdb_bfd_unref): New prototype.
	* objfiles.c (gdb_bfd_unref): New function.
	(free_objfile): Call gdb_bfd_unref.
	* solib.c (free_so): Likewise.
	(symbol_add_stub): Set refcount.

Attachment: gdb-bfd-ownership-20090803.txt
Description: Text document