Mercurial > hg > graal-compiler
annotate graal/com.oracle.nfi/src/com/oracle/nfi/NativeFunctionInterfaceRuntime.java @ 22963:5914ee946cf7
[SPARC] Move of 32 bits between fp and gp registers via StackSlot as the latency is shorter
author | Stefan Anzinger <stefan.anzinger@oracle.com> |
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date | Tue, 10 Nov 2015 16:08:21 +0100 |
parents | 615f3bbbb174 |
children | 56359eb3abfa |
rev | line source |
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GNFI: move GNFI interfaces to oracle.nfi - interface does not depend on graal
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1 /* |
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2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 package com.oracle.nfi; |
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24 |
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25 import java.lang.reflect.Method; |
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26 |
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27 import com.oracle.nfi.api.NativeFunctionInterface; |
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28 import com.oracle.nfi.api.NativeFunctionInterfaceAccess; |
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29 |
16704 | 30 /** |
16705 | 31 * Class for obtaining the {@link NativeFunctionInterface} (if any) provided by the VM. |
16704 | 32 */ |
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33 public final class NativeFunctionInterfaceRuntime { |
16705 | 34 private static final NativeFunctionInterface INSTANCE; |
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35 |
16704 | 36 /** |
16705 | 37 * Gets the {@link NativeFunctionInterface} (if any) provided by the VM. |
38 * | |
39 * @return null if the VM does not provide a {@link NativeFunctionInterface} | |
40 */ | |
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41 public static NativeFunctionInterface getNativeFunctionInterface() { |
16705 | 42 return INSTANCE; |
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43 } |
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44 |
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45 static { |
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46 |
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47 NativeFunctionInterface instance = null; |
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48 |
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49 NativeFunctionInterfaceAccess access = null; |
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50 Class<?> servicesClass = null; |
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51 try { |
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52 servicesClass = Class.forName("jdk.vm.ci.service.Services"); |
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53 } catch (ClassNotFoundException e) { |
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54 try { |
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55 // Legacy support |
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56 servicesClass = Class.forName("com.oracle.jvmci.service.Services"); |
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57 } catch (ClassNotFoundException e2) { |
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58 // JVMCI is unavailable |
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59 } |
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60 } |
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61 if (servicesClass != null) { |
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62 try { |
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63 Method m = servicesClass.getDeclaredMethod("loadSingle", Class.class, boolean.class); |
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64 access = (NativeFunctionInterfaceAccess) m.invoke(null, NativeFunctionInterfaceAccess.class, false); |
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65 } catch (Throwable e) { |
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66 // Fail fast for other errors |
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67 throw (InternalError) new InternalError().initCause(e); |
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68 } |
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69 } |
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70 // TODO: try standard ServiceLoader? |
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71 if (access != null) { |
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72 instance = access.getNativeFunctionInterface(); |
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73 } |
16705 | 74 INSTANCE = instance; |
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75 } |
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76 } |