/* * Copyright (c) 1999, 2019, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2012, 2016 SAP SE. 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. * */ #ifndef CPU_PPC_GLOBALDEFINITIONS_PPC_HPP #define CPU_PPC_GLOBALDEFINITIONS_PPC_HPP #ifdef CC_INTERP #error "CC_INTERP is no longer supported. Removed in change 8145117." #endif // Size of PPC Instructions const int BytesPerInstWord = 4; const int StackAlignmentInBytes = 16; // Indicates whether the C calling conventions require that // 32-bit integer argument values are extended to 64 bits. const bool CCallingConventionRequiresIntsAsLongs = true; #define SUPPORTS_NATIVE_CX8 // PPC64 is not specified as multi-copy-atomic // So we must not #define CPU_MULTI_COPY_ATOMIC // The expected size in bytes of a cache line, used to pad data structures. #define DEFAULT_CACHE_LINE_SIZE 128 #if defined(COMPILER2) && (defined(AIX) || defined(LINUX)) // Include Transactional Memory lock eliding optimization #define INCLUDE_RTM_OPT 1 #else #define INCLUDE_RTM_OPT 0 #endif #define SUPPORT_RESERVED_STACK_AREA #define THREAD_LOCAL_POLL // If UseSIGTRAP is active, we only use the poll bit and no polling page. // Otherwise, we fall back to usage of the polling page in nmethods. // Define the condition to use this -XX flag. #define USE_POLL_BIT_ONLY UseSIGTRAP #endif // CPU_PPC_GLOBALDEFINITIONS_PPC_HPP