1 /* 2 * Copyright (c) 2013, 2016, 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 package org.graalvm.compiler.hotspot.aarch64; 24 25 import static org.graalvm.compiler.core.common.LocationIdentity.any; 26 import static org.graalvm.compiler.hotspot.HotSpotBackend.Options.PreferGraalStubs; 27 import static org.graalvm.compiler.hotspot.HotSpotForeignCallLinkage.JUMP_ADDRESS; 28 import static org.graalvm.compiler.hotspot.HotSpotForeignCallLinkage.RegisterEffect.PRESERVES_REGISTERS; 29 import static org.graalvm.compiler.hotspot.HotSpotForeignCallLinkage.Transition.LEAF; 30 import static org.graalvm.compiler.hotspot.replacements.CRC32Substitutions.UPDATE_BYTES_CRC32; 31 import static jdk.vm.ci.aarch64.AArch64.r0; 32 import static jdk.vm.ci.aarch64.AArch64.r3; 33 import static jdk.vm.ci.hotspot.HotSpotCallingConventionType.NativeCall; 34 import static jdk.vm.ci.meta.Value.ILLEGAL; 35 36 import org.graalvm.compiler.core.common.LIRKind; 37 import org.graalvm.compiler.debug.GraalError; 38 import org.graalvm.compiler.hotspot.HotSpotBackend; 39 import org.graalvm.compiler.hotspot.HotSpotForeignCallLinkageImpl; 40 import org.graalvm.compiler.hotspot.HotSpotGraalRuntimeProvider; 41 import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; 42 import org.graalvm.compiler.hotspot.meta.HotSpotHostForeignCallsProvider; 43 import org.graalvm.compiler.hotspot.meta.HotSpotProviders; 44 import org.graalvm.compiler.word.WordTypes; 45 46 import jdk.vm.ci.code.CallingConvention; 47 import jdk.vm.ci.code.CodeCacheProvider; 48 import jdk.vm.ci.code.RegisterValue; 49 import jdk.vm.ci.code.TargetDescription; 50 import jdk.vm.ci.hotspot.HotSpotJVMCIRuntimeProvider; 51 import jdk.vm.ci.meta.MetaAccessProvider; 52 import jdk.vm.ci.meta.PlatformKind; 53 import jdk.vm.ci.meta.Value; 54 55 public class AArch64HotSpotForeignCallsProvider extends HotSpotHostForeignCallsProvider { 56 57 private final Value[] nativeABICallerSaveRegisters; 58 59 public AArch64HotSpotForeignCallsProvider(HotSpotJVMCIRuntimeProvider jvmciRuntime, HotSpotGraalRuntimeProvider runtime, MetaAccessProvider metaAccess, CodeCacheProvider codeCache, 60 WordTypes wordTypes, Value[] nativeABICallerSaveRegisters) { 61 super(jvmciRuntime, runtime, metaAccess, codeCache, wordTypes); 62 this.nativeABICallerSaveRegisters = nativeABICallerSaveRegisters; 63 } 64 65 @Override 66 public void initialize(HotSpotProviders providers) { 67 GraalHotSpotVMConfig config = runtime.getVMConfig(); 68 TargetDescription target = providers.getCodeCache().getTarget(); 69 PlatformKind word = target.arch.getWordKind(); 70 71 // The calling convention for the exception handler stub is (only?) defined in 72 // TemplateInterpreterGenerator::generate_throw_exception() 73 RegisterValue exception = r0.asValue(LIRKind.reference(word)); 74 RegisterValue exceptionPc = r3.asValue(LIRKind.value(word)); 75 CallingConvention exceptionCc = new CallingConvention(0, ILLEGAL, exception, exceptionPc); 76 register(new HotSpotForeignCallLinkageImpl(HotSpotBackend.EXCEPTION_HANDLER, 0L, PRESERVES_REGISTERS, LEAF, exceptionCc, null, NOT_REEXECUTABLE, any())); 77 register(new HotSpotForeignCallLinkageImpl(HotSpotBackend.EXCEPTION_HANDLER_IN_CALLER, JUMP_ADDRESS, PRESERVES_REGISTERS, LEAF, exceptionCc, null, NOT_REEXECUTABLE, any())); 78 79 if (PreferGraalStubs.getValue()) { 80 throw GraalError.unimplemented("PreferGraalStubs"); 81 } 82 83 // These stubs do callee saving 84 if (config.useCRC32Intrinsics) { 85 registerForeignCall(UPDATE_BYTES_CRC32, config.updateBytesCRC32Stub, NativeCall, PRESERVES_REGISTERS, LEAF, NOT_REEXECUTABLE, any()); 86 } 87 88 super.initialize(providers); 89 } 90 91 @Override 92 public Value[] getNativeABICallerSaveRegisters() { 93 return nativeABICallerSaveRegisters; 94 } 95 96 }