1/*
2 * Copyright (c) 2001, 2019, 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
21 * questions.
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23 */
24
25#ifndef SHARE_GC_SHARED_COLLECTEDHEAP_INLINE_HPP
26#define SHARE_GC_SHARED_COLLECTEDHEAP_INLINE_HPP
27
28#include "gc/shared/collectedHeap.hpp"
29#include "gc/shared/memAllocator.hpp"
30#include "oops/oop.inline.hpp"
31#include "utilities/align.hpp"
32
33inline HeapWord* CollectedHeap::align_allocation_or_fail(HeapWord* addr,
34 HeapWord* end,
35 unsigned short alignment_in_bytes) {
36 if (alignment_in_bytes <= ObjectAlignmentInBytes) {
37 return addr;
38 }
39
40 assert(is_aligned(addr, HeapWordSize),
41 "Address " PTR_FORMAT " is not properly aligned.", p2i(addr));
42 assert(is_aligned(alignment_in_bytes, HeapWordSize),
43 "Alignment size %u is incorrect.", alignment_in_bytes);
44
45 HeapWord* new_addr = align_up(addr, alignment_in_bytes);
46 size_t padding = pointer_delta(new_addr, addr);
47
48 if (padding == 0) {
49 return addr;
50 }
51
52 if (padding < CollectedHeap::min_fill_size()) {
53 padding += alignment_in_bytes / HeapWordSize;
54 assert(padding >= CollectedHeap::min_fill_size(),
55 "alignment_in_bytes %u is expect to be larger "
56 "than the minimum object size", alignment_in_bytes);
57 new_addr = addr + padding;
58 }
59
60 assert(new_addr > addr, "Unexpected arithmetic overflow "
61 PTR_FORMAT " not greater than " PTR_FORMAT, p2i(new_addr), p2i(addr));
62 if(new_addr < end) {
63 CollectedHeap::fill_with_object(addr, padding);
64 return new_addr;
65 } else {
66 return NULL;
67 }
68}
69
70inline oop CollectedHeap::obj_allocate(Klass* klass, int size, TRAPS) {
71 ObjAllocator allocator(klass, size, THREAD);
72 return allocator.allocate();
73}
74
75inline oop CollectedHeap::array_allocate(Klass* klass, int size, int length, bool do_zero, TRAPS) {
76 ObjArrayAllocator allocator(klass, size, length, do_zero, THREAD);
77 return allocator.allocate();
78}
79
80inline oop CollectedHeap::class_allocate(Klass* klass, int size, TRAPS) {
81 ClassAllocator allocator(klass, size, THREAD);
82 return allocator.allocate();
83}
84
85#endif // SHARE_GC_SHARED_COLLECTEDHEAP_INLINE_HPP
86