1 /* 2 * Copyright (c) 2020, 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.code.ValueUtil.asRegister; 28 import static org.graalvm.compiler.hotspot.HotSpotHostBackend.DEOPT_BLOB_UNPACK_WITH_EXCEPTION_IN_TLS; 29 30 import org.graalvm.compiler.asm.sparc.SPARCAddress; 31 import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler; 32 import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; 33 import org.graalvm.compiler.lir.LIRInstructionClass; 34 import org.graalvm.compiler.lir.Opcode; 35 import org.graalvm.compiler.lir.asm.CompilationResultBuilder; 36 import org.graalvm.compiler.lir.sparc.SPARCCall; 37 38 import jdk.vm.ci.code.Register; 39 import jdk.vm.ci.meta.Value; 40 import jdk.vm.ci.sparc.SPARC; 41 42 /** 43 * Removes the current frame and tail calls the uncommon trap routine. 44 */ 45 @Opcode("DEOPT_WITH_EXCEPTION_IN_CALLER") 46 final class SPARCHotSpotDeoptimizeWithExceptionCallerOp extends SPARCHotSpotEpilogueOp { 47 public static final LIRInstructionClass<SPARCHotSpotDeoptimizeWithExceptionCallerOp> TYPE = LIRInstructionClass.create(SPARCHotSpotDeoptimizeWithExceptionCallerOp.class); 48 public static final SizeEstimate SIZE = SizeEstimate.create(32); 49 50 private final GraalHotSpotVMConfig config; 51 private final Register thread; 52 @Use(OperandFlag.REG) private Value exception; 53 54 protected SPARCHotSpotDeoptimizeWithExceptionCallerOp(GraalHotSpotVMConfig config, Value exception, Register thread) { 55 super(TYPE, SIZE); 56 this.config = config; 57 this.exception = exception; 58 this.thread = thread; 59 } 60 61 @Override 62 public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { 63 Register exc = asRegister(exception); 64 65 // Save exception oop in TLS 66 masm.stx(exc, new SPARCAddress(thread, config.threadExceptionOopOffset)); 67 // Store original return address in TLS 68 masm.stx(SPARC.i7, new SPARCAddress(thread, config.threadExceptionPcOffset)); 69 70 leaveFrame(crb); 71 72 try (SPARCMacroAssembler.ScratchRegister sc = masm.getScratchRegister()) { 73 Register scratch = sc.getRegister(); 74 SPARCCall.indirectJmp(crb, masm, scratch, crb.foreignCalls.lookupForeignCall(DEOPT_BLOB_UNPACK_WITH_EXCEPTION_IN_TLS)); 75 } 76 } 77 }