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. 22 * 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 33 inline 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 70 inline oop CollectedHeap::obj_allocate(Klass* klass, int size, TRAPS) { 71 ObjAllocator allocator(klass, size, THREAD); 72 return allocator.allocate(); 73 } 74 75 inline 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 80 inline 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