Mercurial > hg > graal-jvmci-8
comparison graal/com.oracle.graal.hotspot.sparc/src/com/oracle/graal/hotspot/sparc/SPARCHotSpotLeaveUnpackFramesStackFrameOp.java @ 15345:109d6c7c40b5
implement SPARC uncommon trap stub
| author | twisti |
|---|---|
| date | Wed, 23 Apr 2014 15:12:41 -1000 |
| parents | |
| children | 42eaa579e134 |
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| 15344:8065d79ccd49 | 15345:109d6c7c40b5 |
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| 1 /* | |
| 2 * Copyright (c) 2014, 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 com.oracle.graal.hotspot.sparc; | |
| 24 | |
| 25 import static com.oracle.graal.asm.sparc.SPARCMacroAssembler.*; | |
| 26 import static com.oracle.graal.sparc.SPARC.*; | |
| 27 | |
| 28 import com.oracle.graal.api.code.*; | |
| 29 import com.oracle.graal.asm.sparc.*; | |
| 30 import com.oracle.graal.hotspot.stubs.*; | |
| 31 import com.oracle.graal.lir.*; | |
| 32 import com.oracle.graal.lir.sparc.*; | |
| 33 import com.oracle.graal.lir.asm.*; | |
| 34 | |
| 35 /** | |
| 36 * Emits code that leaves a stack frame which is tailored to call the C++ method | |
| 37 * {@link DeoptimizationStub#UNPACK_FRAMES Deoptimization::unpack_frames}. | |
| 38 */ | |
| 39 @Opcode("LEAVE_UNPACK_FRAMES_STACK_FRAME") | |
| 40 final class SPARCHotSpotLeaveUnpackFramesStackFrameOp extends SPARCLIRInstruction { | |
| 41 | |
| 42 private final Register thread; | |
| 43 private final int threadLastJavaSpOffset; | |
| 44 private final int threadLastJavaPcOffset; | |
| 45 private final int threadJavaFrameAnchorFlagsOffset; | |
| 46 | |
| 47 SPARCHotSpotLeaveUnpackFramesStackFrameOp(Register thread, int threadLastJavaSpOffset, int threadLastJavaPcOffset, int threadJavaFrameAnchorFlagsOffset) { | |
| 48 this.thread = thread; | |
| 49 this.threadLastJavaSpOffset = threadLastJavaSpOffset; | |
| 50 this.threadLastJavaPcOffset = threadLastJavaPcOffset; | |
| 51 this.threadJavaFrameAnchorFlagsOffset = threadJavaFrameAnchorFlagsOffset; | |
| 52 } | |
| 53 | |
| 54 @Override | |
| 55 public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { | |
| 56 /* | |
| 57 * Safe thread register manually since we are not using LEAF_SP for {@link | |
| 58 * DeoptimizationStub#UNPACK_FRAMES}. | |
| 59 */ | |
| 60 new Mov(l7, thread).emit(masm); | |
| 61 | |
| 62 // Clear last Java frame values. | |
| 63 new Stx(g0, new SPARCAddress(thread, threadLastJavaSpOffset)).emit(masm); | |
| 64 new Stx(g0, new SPARCAddress(thread, threadLastJavaPcOffset)).emit(masm); | |
| 65 new Stw(g0, new SPARCAddress(thread, threadJavaFrameAnchorFlagsOffset)).emit(masm); | |
| 66 } | |
| 67 } |