| /* |
| * This file is part of the Jikes RVM project (http://jikesrvm.org). |
| * |
| * This file is licensed to You under the Common Public License (CPL); |
| * You may not use this file except in compliance with the License. You |
| * may obtain a copy of the License at |
| * |
| * http://www.opensource.org/licenses/cpl1.0.php |
| * |
| * See the COPYRIGHT.txt file distributed with this work for information |
| * regarding copyright ownership. |
| */ |
| package org.vmmagic.pragma; |
| |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.Target; |
| import java.lang.annotation.RetentionPolicy; |
| import java.lang.annotation.ElementType; |
| import org.vmmagic.Pragma; |
| |
| /** |
| * An annotation for static native methods to show that they should be |
| * compiled as system calls. A system call is a lightweight call to a |
| * C function that doesn't set up the JNI environment and is therefore |
| * cheaper than JNI. The first argument to the function is the address |
| * of the C function to run. |
| */ |
| @Retention(RetentionPolicy.RUNTIME) |
| @Target({ElementType.METHOD}) |
| @Pragma |
| public @interface SysCallNative { |
| } |