/*

 * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

#include "precompiled.hpp"

#include "gc/shared/collectedHeap.hpp"

#include "gc/z/zAddress.inline.hpp"

#include "gc/z/zUtils.inline.hpp"

#include "utilities/debug.hpp"

#include <stdlib.h>

uintptr_t ZUtils::alloc_aligned(size_t alignment, size_t size) {

  void* res = NULL;

  if (posix_memalign(&res, alignment, size) != 0) {

    fatal("posix_memalign() failed");

  }

  memset(res, 0, size);

  return (uintptr_t)res;

}

void ZUtils::insert_filler_object(uintptr_t addr, size_t size) {

  const size_t fill_size_in_words = bytes_to_words(size);

  if (fill_size_in_words >= CollectedHeap::min_fill_size()) {

    CollectedHeap::fill_with_objects((HeapWord*)ZAddress::good(addr), fill_size_in_words);

  }

}