Mercurial > hg > truffle
view graal/com.oracle.jvmci.code/src/com/oracle/jvmci/code/ForeignCallLinkage.java @ 21607:71b338926f2e
moved JVMCI classes into their own distributions (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
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date | Fri, 29 May 2015 22:27:38 +0200 |
parents | 48c1ebd24120 |
children |
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/* * Copyright (c) 2009, 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.jvmci.code; import com.oracle.jvmci.meta.InvokeTarget; import com.oracle.jvmci.meta.Value; import com.oracle.jvmci.meta.ForeignCallDescriptor; /** * The runtime specific details of a {@linkplain ForeignCallDescriptor foreign} call. */ public interface ForeignCallLinkage extends InvokeTarget { /** * Gets the details of where parameters are passed and value(s) are returned from the caller's * perspective. */ CallingConvention getOutgoingCallingConvention(); /** * Gets the details of where parameters are passed and value(s) are returned from the callee's * perspective. */ CallingConvention getIncomingCallingConvention(); /** * Returns the maximum absolute offset of PC relative call to this stub from any position in the * code cache or -1 when not applicable. Intended for determining the required size of * address/offset fields. */ long getMaxCallTargetOffset(); ForeignCallDescriptor getDescriptor(); /** * Gets the values used/killed by this foreign call. */ Value[] getTemporaries(); /** * Determines if the foreign call target destroys all registers. * * @return {@code true} if the register allocator must save all live registers around a call to * this target */ boolean destroysRegisters(); /** * Determines if this is call to a function that does not deoptimize, and therefore also does * not lock, GC or throw exceptions. That is, the thread's execution state during the call is * never inspected by another thread. */ boolean canDeoptimize(); }