Mercurial > hg > graal-compiler
view graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotUnwindOp.java @ 13927:91699ee4e4fa
mx: add option for forcing the usage of javac
author | Bernhard Urban <bernhard.urban@jku.at> |
---|---|
date | Tue, 11 Feb 2014 22:33:43 +0100 |
parents | 1a66453f73db |
children | ed29f7ff71eb |
line wrap: on
line source
/* * Copyright (c) 2012, 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.amd64.AMD64.*; import static com.oracle.graal.api.code.ValueUtil.*; import static com.oracle.graal.hotspot.HotSpotBackend.*; import static com.oracle.graal.lir.LIRInstruction.OperandFlag.*; import com.oracle.graal.api.code.*; import com.oracle.graal.asm.amd64.*; import com.oracle.graal.hotspot.stubs.*; import com.oracle.graal.lir.*; import com.oracle.graal.lir.amd64.*; import com.oracle.graal.lir.asm.*; /** * Removes the current frame and jumps to the {@link UnwindExceptionToCallerStub}. */ @Opcode("UNWIND") final class AMD64HotSpotUnwindOp extends AMD64HotSpotEpilogueOp { @Use({REG}) protected RegisterValue exception; AMD64HotSpotUnwindOp(RegisterValue exception) { 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); } }