1 files changed, 61 insertions, 0 deletions
diff --git a/usr/src/lib/libmtmalloc/tests/align.c b/usr/src/lib/libmtmalloc/tests/align.c
new file mode 100644
index 0000000000..20506ea66b
--- /dev/null
+++ b/usr/src/lib/libmtmalloc/tests/align.c
@@ -0,0 +1,61 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright (c) 1998 by Sun Microsystems, Inc.
+ * All rights reserved.
+ */
+
+#pragma	ident	"%Z%%M%	%I%	%E% SMI"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+
+/*
+ * This file tests for 8 bytes alignment on all allocations.
+ *
+ * cc -O -o align align.c -lmtmalloc
+ */
+
+#define	N 100	/* big enough to hold results */
+
+main(int argc, char ** argv)
+{
+	int i = 0;
+	char *bar[N];
+
+	while (i < 20) {
+		bar[i] = malloc(1<<i);
+		if ((uintptr_t)bar[i] & 7) {
+			fprintf(stderr, "Address %p is not 8 byte aligned\n",
+				bar[i]);
+			fprintf(stderr, "Allocation size %d\n", 1<<i);
+		}
+		i++;
+	}
+
+	i = 0;
+	while (i < 20) {
+		free(bar[i]);
+		i++;
+	}
+}