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Diffstat (limited to 'malloc/malloc.c')
-rw-r--r--malloc/malloc.c33
1 files changed, 17 insertions, 16 deletions
diff --git a/malloc/malloc.c b/malloc/malloc.c
index bb7ea36c80..48a73799e2 100644
--- a/malloc/malloc.c
+++ b/malloc/malloc.c
@@ -1586,7 +1586,8 @@ static void _int_free(mstate, mchunkptr, int);
#else
static void _int_free(mstate, mchunkptr);
#endif
-static Void_t* _int_realloc(mstate, mchunkptr, INTERNAL_SIZE_T);
+static Void_t* _int_realloc(mstate, mchunkptr, INTERNAL_SIZE_T,
+ INTERNAL_SIZE_T);
static Void_t* _int_memalign(mstate, size_t, size_t);
static Void_t* _int_valloc(mstate, size_t);
static Void_t* _int_pvalloc(mstate, size_t);
@@ -3778,7 +3779,7 @@ public_rEALLOc(Void_t* oldmem, size_t bytes)
tsd_setspecific(arena_key, (Void_t *)ar_ptr);
#endif
- newp = _int_realloc(ar_ptr, oldp, nb);
+ newp = _int_realloc(ar_ptr, oldp, oldsize, nb);
(void)mutex_unlock(&ar_ptr->mutex);
assert(!newp || chunk_is_mmapped(mem2chunk(newp)) ||
@@ -5102,7 +5103,8 @@ static void malloc_consolidate(av) mstate av;
*/
Void_t*
-_int_realloc(mstate av, mchunkptr oldp, INTERNAL_SIZE_T nb)
+_int_realloc(mstate av, mchunkptr oldp, INTERNAL_SIZE_T oldsize,
+ INTERNAL_SIZE_T nb)
{
mchunkptr newp; /* chunk to return */
INTERNAL_SIZE_T newsize; /* its size */
@@ -5123,28 +5125,25 @@ _int_realloc(mstate av, mchunkptr oldp, INTERNAL_SIZE_T nb)
const char *errstr = NULL;
- /* Simple tests for old block integrity. */
- if (__builtin_expect (misaligned_chunk (oldp), 0))
- {
- errstr = "realloc(): invalid pointer";
- errout:
- malloc_printerr (check_action, errstr, chunk2mem(oldp));
- return NULL;
- }
-
/* oldmem size */
- const INTERNAL_SIZE_T oldsize = chunksize(oldp);
-
if (__builtin_expect (oldp->size <= 2 * SIZE_SZ, 0)
|| __builtin_expect (oldsize >= av->system_mem, 0))
{
errstr = "realloc(): invalid old size";
- goto errout;
+ errout:
+ malloc_printerr (check_action, errstr, chunk2mem(oldp));
+ return NULL;
}
check_inuse_chunk(av, oldp);
- if (!chunk_is_mmapped(oldp)) {
+ /* All callers already filter out mmap'ed chunks. */
+#if 0
+ if (!chunk_is_mmapped(oldp))
+#else
+ assert (!chunk_is_mmapped(oldp));
+#endif
+ {
next = chunk_at_offset(oldp, oldsize);
INTERNAL_SIZE_T nextsize = chunksize(next);
@@ -5271,6 +5270,7 @@ _int_realloc(mstate av, mchunkptr oldp, INTERNAL_SIZE_T nb)
return chunk2mem(newp);
}
+#if 0
/*
Handle mmap cases
*/
@@ -5339,6 +5339,7 @@ _int_realloc(mstate av, mchunkptr oldp, INTERNAL_SIZE_T nb)
return 0;
#endif
}
+#endif
}
/*