Move away from the __ARCH_WANT_SYSCALL_NO_AT system calls.

Modern architectures only get the *at(2) system calls. For example,
aarch64 doesn't have open(2), and expects userspace to use openat(2)
instead.

Change-Id: I87b4ed79790cb8a80844f5544ac1a13fda26c7b5

tests/sys_time_test.cpp

@@ -0,0 +1,40 @@
+/*
+ * 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.
+ */
+
+#include <gtest/gtest.h>
+
+#include <errno.h>
+#include <sys/time.h>
+
+TEST(sys_time, utimes) {
+  timeval tv[2];
+  memset(&tv, 0, sizeof(tv));
+
+  tv[0].tv_usec = -123;
+  ASSERT_EQ(-1, utimes("/", tv));
+  ASSERT_EQ(EINVAL, errno);
+  tv[0].tv_usec = 1234567;
+  ASSERT_EQ(-1, utimes("/", tv));
+  ASSERT_EQ(EINVAL, errno);
+  tv[0].tv_usec = 0;
+
+  tv[1].tv_usec = -123;
+  ASSERT_EQ(-1, utimes("/", tv));
+  ASSERT_EQ(EINVAL, errno);
+  tv[1].tv_usec = 1234567;
+  ASSERT_EQ(-1, utimes("/", tv));
+  ASSERT_EQ(EINVAL, errno);
+}