1 /*
   2  * Copyright (c) 2013, 2018, 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 package org.graalvm.compiler.hotspot.sparc;
  26 
  27 import static jdk.vm.ci.hotspot.HotSpotCallingConventionType.NativeCall;
  28 import static jdk.vm.ci.meta.Value.ILLEGAL;
  29 import static jdk.vm.ci.sparc.SPARC.i0;
  30 import static jdk.vm.ci.sparc.SPARC.i1;
  31 import static jdk.vm.ci.sparc.SPARC.o0;
  32 import static jdk.vm.ci.sparc.SPARC.o1;
  33 import static org.graalvm.compiler.hotspot.HotSpotBackend.EXCEPTION_HANDLER;
  34 import static org.graalvm.compiler.hotspot.HotSpotBackend.EXCEPTION_HANDLER_IN_CALLER;
  35 import static org.graalvm.compiler.hotspot.HotSpotForeignCallLinkage.JUMP_ADDRESS;
  36 import static org.graalvm.compiler.hotspot.HotSpotForeignCallLinkage.Reexecutability.NOT_REEXECUTABLE;
  37 import static org.graalvm.compiler.hotspot.HotSpotForeignCallLinkage.RegisterEffect.PRESERVES_REGISTERS;
  38 import static org.graalvm.compiler.hotspot.HotSpotForeignCallLinkage.Transition.LEAF_NO_VZERO;
  39 import static org.graalvm.compiler.hotspot.replacements.CRC32CSubstitutions.UPDATE_BYTES_CRC32C;
  40 import static org.graalvm.compiler.hotspot.replacements.CRC32Substitutions.UPDATE_BYTES_CRC32;
  41 import static jdk.internal.vm.compiler.word.LocationIdentity.any;
  42 
  43 import org.graalvm.compiler.core.common.LIRKind;
  44 import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig;
  45 import org.graalvm.compiler.hotspot.HotSpotForeignCallLinkageImpl;
  46 import org.graalvm.compiler.hotspot.HotSpotGraalRuntimeProvider;
  47 import org.graalvm.compiler.hotspot.meta.HotSpotHostForeignCallsProvider;
  48 import org.graalvm.compiler.hotspot.meta.HotSpotProviders;
  49 import org.graalvm.compiler.options.OptionValues;
  50 import org.graalvm.compiler.word.WordTypes;
  51 
  52 import jdk.vm.ci.code.CallingConvention;
  53 import jdk.vm.ci.code.CodeCacheProvider;
  54 import jdk.vm.ci.code.RegisterValue;
  55 import jdk.vm.ci.code.TargetDescription;
  56 import jdk.vm.ci.hotspot.HotSpotJVMCIRuntime;
  57 import jdk.vm.ci.meta.JavaKind;
  58 import jdk.vm.ci.meta.MetaAccessProvider;
  59 import jdk.vm.ci.meta.PlatformKind;
  60 import jdk.vm.ci.meta.Value;
  61 
  62 public class SPARCHotSpotForeignCallsProvider extends HotSpotHostForeignCallsProvider {
  63 
  64     private final Value[] nativeABICallerSaveRegisters;
  65 
  66     public SPARCHotSpotForeignCallsProvider(HotSpotJVMCIRuntime jvmciRuntime, HotSpotGraalRuntimeProvider runtime, MetaAccessProvider metaAccess, CodeCacheProvider codeCache,
  67                     WordTypes wordTypes, Value[] nativeABICallerSaveRegisters) {
  68         super(jvmciRuntime, runtime, metaAccess, codeCache, wordTypes);
  69         this.nativeABICallerSaveRegisters = nativeABICallerSaveRegisters;
  70     }
  71 
  72     @Override
  73     public void initialize(HotSpotProviders providers, OptionValues options) {
  74         GraalHotSpotVMConfig config = runtime.getVMConfig();
  75         TargetDescription target = providers.getCodeCache().getTarget();
  76         PlatformKind word = target.arch.getWordKind();
  77 
  78         // The calling convention for the exception handler stub is (only?) defined in
  79         // TemplateInterpreterGenerator::generate_throw_exception()
  80         // in templateInterpreter_sparc.cpp around line 1925
  81         RegisterValue outgoingException = o0.asValue(LIRKind.fromJavaKind(target.arch, JavaKind.Object));
  82         RegisterValue outgoingExceptionPc = o1.asValue(LIRKind.value(word));
  83         RegisterValue incomingException = i0.asValue(LIRKind.fromJavaKind(target.arch, JavaKind.Object));
  84         RegisterValue incomingExceptionPc = i1.asValue(LIRKind.value(word));
  85         CallingConvention outgoingExceptionCc = new CallingConvention(0, ILLEGAL, outgoingException, outgoingExceptionPc);
  86         CallingConvention incomingExceptionCc = new CallingConvention(0, ILLEGAL, incomingException, incomingExceptionPc);
  87         register(new HotSpotForeignCallLinkageImpl(EXCEPTION_HANDLER, 0L, PRESERVES_REGISTERS, LEAF_NO_VZERO, NOT_REEXECUTABLE, outgoingExceptionCc, incomingExceptionCc, any()));
  88         register(new HotSpotForeignCallLinkageImpl(EXCEPTION_HANDLER_IN_CALLER, JUMP_ADDRESS, PRESERVES_REGISTERS, LEAF_NO_VZERO, NOT_REEXECUTABLE, outgoingExceptionCc,
  89                         incomingExceptionCc, any()));
  90 
  91         if (config.useCRC32Intrinsics) {
  92             // This stub does callee saving
  93             registerForeignCall(UPDATE_BYTES_CRC32, config.updateBytesCRC32Stub, NativeCall, PRESERVES_REGISTERS, LEAF_NO_VZERO, NOT_REEXECUTABLE, any());
  94         }
  95         if (config.useCRC32CIntrinsics) {
  96             registerForeignCall(UPDATE_BYTES_CRC32C, config.updateBytesCRC32C, NativeCall, PRESERVES_REGISTERS, LEAF_NO_VZERO, NOT_REEXECUTABLE, any());
  97         }
  98 
  99         super.initialize(providers, options);
 100     }
 101 
 102     @Override
 103     public Value[] getNativeABICallerSaveRegisters() {
 104         return nativeABICallerSaveRegisters;
 105     }
 106 }