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121 lines
4.0 KiB
C++
121 lines
4.0 KiB
C++
/*
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* Copyright (c) 1997, 2020, Oracle and/or its affiliates. All rights reserved.
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* Copyright 2009 Red Hat, Inc.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "precompiled.hpp"
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#include "asm/assembler.inline.hpp"
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#include "memory/resourceArea.hpp"
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#include "runtime/arguments.hpp"
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#include "runtime/globals_extension.hpp"
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#include "runtime/java.hpp"
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#include "runtime/stubCodeGenerator.hpp"
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#include "runtime/vm_version.hpp"
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void VM_Version::initialize() {
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// This machine does not allow unaligned memory accesses
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if (! FLAG_IS_DEFAULT(UseUnalignedAccesses)) {
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warning("Unaligned memory access is not available on this CPU");
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FLAG_SET_DEFAULT(UseUnalignedAccesses, false);
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}
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// Disable prefetching for Zero
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if (! FLAG_IS_DEFAULT(AllocatePrefetchDistance)) {
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warning("Prefetching is not available for a Zero VM");
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}
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FLAG_SET_DEFAULT(AllocatePrefetchDistance, 0);
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// If lock diagnostics is needed, always call to runtime
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if (DiagnoseSyncOnValueBasedClasses != 0) {
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FLAG_SET_DEFAULT(UseHeavyMonitors, true);
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}
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if (UseAESIntrinsics) {
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warning("AES intrinsics are not available on this CPU");
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FLAG_SET_DEFAULT(UseAESIntrinsics, false);
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}
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if (UseAES) {
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warning("AES instructions are not available on this CPU");
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FLAG_SET_DEFAULT(UseAES, false);
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}
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if (UseAESCTRIntrinsics) {
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warning("AES/CTR intrinsics are not available on this CPU");
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FLAG_SET_DEFAULT(UseAESCTRIntrinsics, false);
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}
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if (UseFMA) {
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warning("FMA instructions are not available on this CPU");
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FLAG_SET_DEFAULT(UseFMA, false);
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}
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if (UseMD5Intrinsics) {
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warning("MD5 intrinsics are not available on this CPU");
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FLAG_SET_DEFAULT(UseMD5Intrinsics, false);
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}
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if (UseSHA) {
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warning("SHA instructions are not available on this CPU");
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FLAG_SET_DEFAULT(UseSHA, false);
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}
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if (UseSHA1Intrinsics) {
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warning("Intrinsics for SHA-1 crypto hash functions not available on this CPU.");
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FLAG_SET_DEFAULT(UseSHA1Intrinsics, false);
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}
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if (UseSHA256Intrinsics) {
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warning("Intrinsics for SHA-224 and SHA-256 crypto hash functions not available on this CPU.");
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FLAG_SET_DEFAULT(UseSHA256Intrinsics, false);
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}
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if (UseSHA512Intrinsics) {
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warning("Intrinsics for SHA-384 and SHA-512 crypto hash functions not available on this CPU.");
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FLAG_SET_DEFAULT(UseSHA512Intrinsics, false);
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}
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if (UseSHA3Intrinsics) {
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warning("Intrinsics for SHA3-224, SHA3-256, SHA3-384 and SHA3-512 crypto hash functions not available on this CPU.");
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FLAG_SET_DEFAULT(UseSHA3Intrinsics, false);
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}
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if (UseCRC32Intrinsics) {
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warning("CRC32 intrinsics are not available on this CPU");
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FLAG_SET_DEFAULT(UseCRC32Intrinsics, false);
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}
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if (UseAdler32Intrinsics) {
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warning("Adler32 intrinsics are not available on this CPU");
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FLAG_SET_DEFAULT(UseAdler32Intrinsics, false);
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}
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if (UseVectorizedMismatchIntrinsic) {
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warning("vectorizedMismatch intrinsic is not available on this CPU.");
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FLAG_SET_DEFAULT(UseVectorizedMismatchIntrinsic, false);
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}
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// Not implemented
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UNSUPPORTED_OPTION(CriticalJNINatives);
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}
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