Mercurial > hg > truffle
view graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotUnwindOp.java @ 21673:5024c80224c7
moved com.oracle.graal.[amd64|sparc] to com.oracle.jvmci.[amd64|sparc] (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 02 Jun 2015 22:11:52 +0200 |
parents | 47a3d4b3ccb3 |
children | 6df25b1418be |
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/* * Copyright (c) 2012, 2014, Oracle and/or its affiliates. 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. */ package com.oracle.graal.hotspot.amd64; import static com.oracle.graal.hotspot.HotSpotBackend.*; import static com.oracle.graal.lir.LIRInstruction.OperandFlag.*; import static com.oracle.jvmci.amd64.AMD64.*; import static com.oracle.jvmci.code.ValueUtil.*; import com.oracle.graal.asm.amd64.*; import com.oracle.graal.hotspot.stubs.*; import com.oracle.graal.lir.*; import com.oracle.graal.lir.StandardOp.BlockEndOp; import com.oracle.graal.lir.amd64.*; import com.oracle.graal.lir.asm.*; import com.oracle.jvmci.code.*; import com.oracle.jvmci.meta.*; /** * Removes the current frame and jumps to the {@link UnwindExceptionToCallerStub}. */ @Opcode("UNWIND") final class AMD64HotSpotUnwindOp extends AMD64HotSpotEpilogueOp implements BlockEndOp { public static final LIRInstructionClass<AMD64HotSpotUnwindOp> TYPE = LIRInstructionClass.create(AMD64HotSpotUnwindOp.class); @Use({REG}) protected RegisterValue exception; AMD64HotSpotUnwindOp(RegisterValue exception, AllocatableValue savedRbp) { super(TYPE, savedRbp); this.exception = exception; } @Override public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) { leaveFrameAndRestoreRbp(crb, masm); ForeignCallLinkage linkage = crb.foreignCalls.lookupForeignCall(UNWIND_EXCEPTION_TO_CALLER); CallingConvention cc = linkage.getOutgoingCallingConvention(); assert cc.getArgumentCount() == 2; assert exception.equals(cc.getArgument(0)); // Get return address (is on top of stack after leave). Register returnAddress = asRegister(cc.getArgument(1)); masm.movq(returnAddress, new AMD64Address(rsp, 0)); AMD64Call.directJmp(crb, masm, linkage); } }