Mercurial > hg > truffle
view graal/com.oracle.graal.hotspot.sparc/src/com/oracle/graal/hotspot/sparc/SPARCHotSpotUnwindOp.java @ 11383:423c53e2fa7e
Merge
author | Erik Eckstein <erik.eckstein@oracle.com> |
---|---|
date | Wed, 21 Aug 2013 08:29:07 +0200 |
parents | 886c2df7a7e4 |
children | 23ccaa863eda |
line wrap: on
line source
/* * Copyright (c) 2012, 2013, 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.sparc; import static com.oracle.graal.sparc.SPARC.*; 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.sparc.*; import com.oracle.graal.asm.sparc.SPARCMacroAssembler.Mov; import com.oracle.graal.hotspot.stubs.*; import com.oracle.graal.lir.*; import com.oracle.graal.lir.sparc.*; import com.oracle.graal.lir.asm.*; /** * Removes the current frame and jumps to the {@link UnwindExceptionToCallerStub}. */ @Opcode("UNWIND") final class SPARCHotSpotUnwindOp extends SPARCHotSpotEpilogueOp { @Use({REG}) protected RegisterValue exception; SPARCHotSpotUnwindOp(RegisterValue exception) { this.exception = exception; } @Override public void emitCode(TargetMethodAssembler tasm, SPARCMacroAssembler masm) { leaveFrame(tasm); ForeignCallLinkage linkage = tasm.runtime.lookupForeignCall(UNWIND_EXCEPTION_TO_CALLER); CallingConvention cc = linkage.getOutgoingCallingConvention(); assert cc.getArgumentCount() == 2; assert exception.equals(cc.getArgument(0)); // Get return address (is in o7 after leave). Register returnAddress = asRegister(cc.getArgument(1)); new Mov(o7, returnAddress).emit(masm); Register scratch = g5; SPARCCall.indirectJmp(tasm, masm, scratch, linkage); } }