One of the warnings that appears with -Wextra is "ordered comparison
of pointer with integer zero" in malloc.c:tcache_get, for the
assertion:
assert (tcache->entries[tc_idx] > 0);
Indeed, a "> 0" comparison does not make sense for
tcache->entries[tc_idx], which is a pointer. My guess is that
tcache->counts[tc_idx] is what's intended here, and this patch changes
the assertion accordingly.
Tested for x86_64.
* malloc/malloc.c (tcache_get): Compare tcache->counts[tc_idx]
with 0, not tcache->entries[tc_idx].
(cherry picked from commit
77dc0d8643aa99c92bf671352b0a8adde705896f)
+2019-02-04 Joseph Myers <joseph@codesourcery.com>
+
+ * malloc/malloc.c (tcache_get): Compare tcache->counts[tc_idx]
+ with 0, not tcache->entries[tc_idx].
+
2019-02-06 Stefan Liebler <stli@linux.ibm.com>
[BZ #23403]
{
tcache_entry *e = tcache->entries[tc_idx];
assert (tc_idx < TCACHE_MAX_BINS);
- assert (tcache->entries[tc_idx] > 0);
+ assert (tcache->counts[tc_idx] > 0);
tcache->entries[tc_idx] = e->next;
--(tcache->counts[tc_idx]);
e->key = NULL;