| /* |
| * 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 org.graalvm.compiler.core.common.spi; |
| |
| import jdk.vm.ci.code.CallingConvention; |
| import jdk.vm.ci.meta.InvokeTarget; |
| import jdk.vm.ci.meta.Value; |
| |
| /** |
| * 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 a 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 debug info needs to be associated with this call. Debug info is required if the |
| * function can raise an exception, try to lock, trigger GC or do anything else that requires |
| * the VM to be able to inspect the thread's execution state. |
| */ |
| boolean needsDebugInfo(); |
| } |