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2009-08-21 Paul Pluzhnikov <ppluzhnikov@google.com>

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* objfiles.h (gdb_bfd_ref): New prototype.
	* objfiles.c (gdb_bfd_ref): New function.
	(allocate_objfile): Call it.
	(gdb_bfd_unref): Adjust assertion.
	* solib.c (solib_map_sections): Add reference.
	(symbol_add_stub): Don't add reference here.
	* symfile.c (reread_symbols): Add reference.
This commit is contained in:
Paul Pluzhnikov
2009-08-21 17:57:17 +00:00
parent 032b94c5fd
commit 3db741efb7
4 changed files with 32 additions and 17 deletions
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39
gdb/objfiles.c
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@ -181,7 +181,7 @@ allocate_objfile (bfd *abfd, int flags)
that any data that is reference is saved in the per-objfile data
region. */
objfile->obfd = abfd;
objfile->obfd = gdb_bfd_ref (abfd);
if (objfile->name != NULL)
{
xfree (objfile->name);
@ -1062,7 +1062,26 @@ objfiles_changed (void)
objfiles_changed_p = 1; /* Rebuild section map next time we need it. */
}
/* Unreference and possibly close abfd. */
/* Add reference to ABFD. Returns ABFD. */
struct bfd *
gdb_bfd_ref (struct bfd *abfd)
{
int *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)
{
@ -1074,16 +1093,14 @@ gdb_bfd_unref (struct bfd *abfd)
p_refcount = bfd_usrdata (abfd);
/* Valid range for p_refcount: NULL (single owner), or a pointer
to int counter, which has a value of 1 (single owner) or 2 (shared). */
gdb_assert (p_refcount == NULL || *p_refcount == 1 || *p_refcount == 2);
/* Valid range for p_refcount: a pointer to int counter, which has a
value of 1 (single owner) or 2 (shared). */
gdb_assert (*p_refcount == 1 || *p_refcount == 2);
*p_refcount -= 1;
if (*p_refcount > 0)
return;
if (p_refcount != NULL)
{
*p_refcount -= 1;
if (*p_refcount > 0)
return;
}
xfree (p_refcount);
bfd_usrdata (abfd) = NULL; /* Paranoia. */