Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/debugger/MachineDescription.java @ 1913:3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
Summary: Allow CONSTANT_InvokeDynamic nodes to have any number of extra operands.
Reviewed-by: twisti
| author | jrose |
|---|---|
| date | Sat, 30 Oct 2010 13:08:23 -0700 |
| parents | c18cbe5936b8 |
| children |
| rev | line source |
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| 0 | 1 /* |
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2 * Copyright (c) 2000, 2008, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
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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. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.debugger; | |
| 26 | |
| 27 import java.io.Serializable; | |
| 28 | |
| 29 /** Encapsulates machine-specific information that currently must be | |
| 30 exported up to the Java level. Implementations must be | |
| 31 serializable. */ | |
| 32 | |
| 33 public interface MachineDescription extends Serializable { | |
| 34 /** Returns the size of an address in bytes. Currently needed to be | |
| 35 able to traverse arrays of pointers or oops. */ | |
| 36 public long getAddressSize(); | |
| 37 | |
| 38 /** Returns the maximum value of the C integer type with the given | |
| 39 size in bytes and signedness. Throws IllegalArgumentException if | |
| 40 the size in bytes is not legal for a C type (or can not be | |
| 41 handled by this system). Note that the current implementation | |
| 42 does not currently handle unsigned 8-byte longs properly. */ | |
| 43 public long cIntegerTypeMaxValue(long sizeInBytes, boolean isUnsigned); | |
| 44 | |
| 45 /** Returns the minimum value of the C integer type with the given | |
| 46 size in bytes and signedness. Throws IllegalArgumentException if | |
| 47 the size in bytes is not legal for a C type (or can not be | |
| 48 handled by this system). */ | |
| 49 public long cIntegerTypeMinValue(long sizeInBytes, boolean isUnsigned); | |
| 50 | |
| 51 /** Indicates whether the CPU is big- or little-endian. This | |
| 52 information is typically only needed by the Debugger | |
| 53 implementation. */ | |
| 54 public boolean isBigEndian(); | |
| 55 | |
| 56 /** Indicates whether the underlying machine supports the LP64 data | |
| 57 model (currently only SPARC/64). */ | |
| 58 public boolean isLP64(); | |
| 59 } |