1 /* 2 * Copyright (c) 1997, 2023, Oracle and/or its affiliates. All rights reserved. 3 * Copyright 2009, 2021, Red Hat, Inc. 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 5 * 6 * This code is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 only, as 8 * published by the Free Software Foundation. 9 * 10 * This code is distributed in the hope that it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 * version 2 for more details (a copy is included in the LICENSE file that 14 * accompanied this code). 15 * 16 * You should have received a copy of the GNU General Public License version 17 * 2 along with this work; if not, write to the Free Software Foundation, 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 * 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 21 * or visit www.oracle.com if you need additional information or have any 22 * questions. 23 * 24 */ 25 26 #ifndef CPU_ZERO_GLOBALDEFINITIONS_ZERO_HPP 27 #define CPU_ZERO_GLOBALDEFINITIONS_ZERO_HPP 28 29 #ifdef _LP64 30 #define SUPPORTS_NATIVE_CX8 31 #endif 32 33 // The expected size in bytes of a cache line. 34 #define DEFAULT_CACHE_LINE_SIZE 64 35 36 // The default padding size for data structures to avoid false sharing. 37 #define DEFAULT_PADDING_SIZE DEFAULT_CACHE_LINE_SIZE 38 39 #include <ffi.h> 40 41 // Indicates whether the C calling conventions require that 42 // 32-bit integer argument values are extended to 64 bits. 43 const bool CCallingConventionRequiresIntsAsLongs = false; 44 #if defined(AIX) 45 const size_t pd_segfault_address = -1; 46 #elif defined(S390) 47 const size_t pd_segfault_address = 4096; 48 #else 49 const size_t pd_segfault_address = 1024; 50 #endif 51 52 #endif // CPU_ZERO_GLOBALDEFINITIONS_ZERO_HPP