Quellcode-Bibliothek globalDefinitions_x86.hpp
Sprache: C
/* * Copyright (c) 1999, 2021, 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. *
*/
// Indicates whether the C calling conventions require that // 32-bit integer argument values are extended to 64 bits. constbool CCallingConventionRequiresIntsAsLongs = false;
#define SUPPORTS_NATIVE_CX8
#define SUPPORT_MONITOR_COUNT
#define CPU_MULTI_COPY_ATOMIC
// The expected size in bytes of a cache line, used to pad data structures. #if COMPILER1_AND_COMPILER2 #ifdef _LP64 // tiered, 64-bit, large machine #define DEFAULT_CACHE_LINE_SIZE 128 #define OM_CACHE_LINE_SIZE 64 #else // tiered, 32-bit, medium machine #define DEFAULT_CACHE_LINE_SIZE 64 #endif #elifdefined(COMPILER1) // pure C1, 32-bit, small machine // i486 was the last Intel chip with 16-byte cache line size #define DEFAULT_CACHE_LINE_SIZE 32 #elifdefined(COMPILER2) #ifdef _LP64 // pure C2, 64-bit, large machine #define DEFAULT_CACHE_LINE_SIZE 128 #define OM_CACHE_LINE_SIZE 64 #else // pure C2, 32-bit, medium machine #define DEFAULT_CACHE_LINE_SIZE 64 #endif #endif
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