Add new tests for memory/string routines.

Create a few generic testing functions to allow any memory/string tests
to be created.

Add alignment tests for memcpy/memset/strcat/strcpy/strlen.

Add an overread test for memcpy/strcat/strcpy/strlen. This test attempts
to verify that the functions do not read past the end of their buffers
(src buffer in the case of src/dst functions).

Bug: 9797008

Change-Id: Ib3223ca1b99e729ae8229adc2d03f4dc3103d97c

tests/buffer_tests.h

@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _BIONIC_TESTS_BUFFER_TESTS_H
+#define _BIONIC_TESTS_BUFFER_TESTS_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+void RunSingleBufferAlignTest(
+    size_t max_test_size, void (*test_func)(uint8_t*, size_t),
+    size_t (*set_incr)(size_t) = NULL);
+
+void RunSrcDstBufferAlignTest(
+    size_t max_test_size, void (*test_func)(uint8_t*, uint8_t*, size_t),
+    size_t (*set_incr)(size_t) = NULL);
+
+void RunSingleBufferOverreadTest(void (*test_func)(uint8_t*, size_t));
+
+void RunSrcDstBufferOverreadTest(void (*test_func)(uint8_t*, uint8_t*, size_t));
+
+#endif // _BIONIC_TESTS_BUFFER_TESTS_H