1 /*
 2  * Copyright (c) 2015, 2024, Oracle and/or its affiliates. All rights reserved.
 3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 4  *
 5  * This code is free software; you can redistribute it and/or modify it
 6  * under the terms of the GNU General Public License version 2 only, as
 7  * published by the Free Software Foundation.
 8  *
 9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
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22  */
23 
24 #ifndef SHARE_GC_Z_ZUTILS_HPP
25 #define SHARE_GC_Z_ZUTILS_HPP
26 
27 #include "gc/z/zAddress.hpp"
28 #include "memory/allStatic.hpp"
29 #include "utilities/globalDefinitions.hpp"
30 
31 class ZUtils : public AllStatic {
32 public:
33   // Thread
34   static const char* thread_name();
35 
36   // Allocation
37   static uintptr_t alloc_aligned_unfreeable(size_t alignment, size_t size);
38 
39   // Size conversion
40   static size_t bytes_to_words(size_t size_in_words);
41   static size_t words_to_bytes(size_t size_in_words);
42 
43   // Object
44   static size_t object_size(zaddress addr);
45   static void object_copy_disjoint(zaddress from, zaddress to, size_t size);
46   static void object_copy_conjoint(zaddress from, zaddress to, size_t size);
47 
48   // Memory
49   static void fill(uintptr_t* addr, size_t count, uintptr_t value);
50 };
51 
52 #endif // SHARE_GC_Z_ZUTILS_HPP