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-rw-r--r--elf/dl-close.c67
1 files changed, 28 insertions, 39 deletions
diff --git a/elf/dl-close.c b/elf/dl-close.c
index bfcceea..31bc80b 100644
--- a/elf/dl-close.c
+++ b/elf/dl-close.c
@@ -343,14 +343,14 @@ _dl_close (void *_map)
one for the terminating NULL pointer. */
size_t remain = (new_list != NULL) + 1;
bool removed_any = false;
- for (size_t cnt = 0; imap->l_scoperec->scope[cnt] != NULL; ++cnt)
+ for (size_t cnt = 0; imap->l_scope[cnt] != NULL; ++cnt)
/* This relies on l_scope[] entries being always set either
to its own l_symbolic_searchlist address, or some map's
l_searchlist address. */
- if (imap->l_scoperec->scope[cnt] != &imap->l_symbolic_searchlist)
+ if (imap->l_scope[cnt] != &imap->l_symbolic_searchlist)
{
struct link_map *tmap = (struct link_map *)
- ((char *) imap->l_scoperec->scope[cnt]
+ ((char *) imap->l_scope[cnt]
- offsetof (struct link_map, l_searchlist));
assert (tmap->l_ns == ns);
if (tmap->l_idx == IDX_STILL_USED)
@@ -368,38 +368,35 @@ _dl_close (void *_map)
user of the current array. If possible use the link map's
memory. */
size_t new_size;
- struct r_scoperec *newp;
- if (imap->l_scoperec != &imap->l_scoperec_mem
- && remain < NINIT_SCOPE_ELEMS (imap)
- && imap->l_scoperec_mem.nusers == 0)
+ struct r_scope_elem **newp;
+
+#define SCOPE_ELEMS(imap) \
+ (sizeof (imap->l_scope_mem) / sizeof (imap->l_scope_mem[0]))
+
+ if (imap->l_scope != imap->l_scope_mem
+ && remain < SCOPE_ELEMS (imap))
{
- new_size = NINIT_SCOPE_ELEMS (imap);
- newp = &imap->l_scoperec_mem;
+ new_size = SCOPE_ELEMS (imap);
+ newp = imap->l_scope_mem;
}
else
{
new_size = imap->l_scope_max;
- newp = (struct r_scoperec *)
- malloc (sizeof (struct r_scoperec)
- + new_size * sizeof (struct r_scope_elem *));
+ newp = (struct r_scope_elem **)
+ malloc (new_size * sizeof (struct r_scope_elem *));
if (newp == NULL)
_dl_signal_error (ENOMEM, "dlclose", NULL,
N_("cannot create scope list"));
}
- newp->nusers = 0;
- newp->remove_after_use = false;
- newp->notify = false;
-
/* Copy over the remaining scope elements. */
remain = 0;
- for (size_t cnt = 0; imap->l_scoperec->scope[cnt] != NULL; ++cnt)
+ for (size_t cnt = 0; imap->l_scope[cnt] != NULL; ++cnt)
{
- if (imap->l_scoperec->scope[cnt]
- != &imap->l_symbolic_searchlist)
+ if (imap->l_scope[cnt] != &imap->l_symbolic_searchlist)
{
struct link_map *tmap = (struct link_map *)
- ((char *) imap->l_scoperec->scope[cnt]
+ ((char *) imap->l_scope[cnt]
- offsetof (struct link_map, l_searchlist));
if (tmap->l_idx != IDX_STILL_USED)
{
@@ -407,38 +404,30 @@ _dl_close (void *_map)
scope. */
if (new_list != NULL)
{
- newp->scope[remain++] = new_list;
+ newp[remain++] = new_list;
new_list = NULL;
}
continue;
}
}
- newp->scope[remain++] = imap->l_scoperec->scope[cnt];
+ newp[remain++] = imap->l_scope[cnt];
}
- newp->scope[remain] = NULL;
+ newp[remain] = NULL;
- struct r_scoperec *old = imap->l_scoperec;
+ struct r_scope_elem **old = imap->l_scope;
if (SINGLE_THREAD_P)
- imap->l_scoperec = newp;
+ imap->l_scope = newp;
else
{
- __rtld_mrlock_change (imap->l_scoperec_lock);
- imap->l_scoperec = newp;
- __rtld_mrlock_done (imap->l_scoperec_lock);
-
- if (atomic_increment_val (&old->nusers) != 1)
- {
- old->remove_after_use = true;
- old->notify = true;
- if (atomic_decrement_val (&old->nusers) != 0)
- __rtld_waitzero (old->nusers);
- }
+ __rtld_mrlock_change (imap->l_scope_lock);
+ imap->l_scope = newp;
+ __rtld_mrlock_done (imap->l_scope_lock);
}
/* No user anymore, we can free it now. */
- if (old != &imap->l_scoperec_mem)
+ if (old != imap->l_scope_mem)
free (old);
imap->l_scope_max = new_size;
@@ -652,8 +641,8 @@ _dl_close (void *_map)
free (imap->l_initfini);
/* Remove the scope array if we allocated it. */
- if (imap->l_scoperec != &imap->l_scoperec_mem)
- free (imap->l_scoperec);
+ if (imap->l_scope != imap->l_scope_mem)
+ free (imap->l_scope);
if (imap->l_phdr_allocated)
free ((void *) imap->l_phdr);