Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/debugger/win32/Win32LDTEntry.java @ 2072:d6cd0d55d0b5
6987812: 2/3 SAJDI: "gHotSpotVMTypes was not initialized properly in the remote process"
Summary: Change ExportDirectoryTableImpl to return the 'Export RVA' field without modification. Read 'Base Of Data' field in optional header when PE32 format COFF file is read. Refine search for dbgeng.dll and dbghelp.dll. Other cleanups.
Reviewed-by: swamyv, poonam
author | dcubed |
---|---|
date | Thu, 23 Dec 2010 07:58:35 -0800 |
parents | c18cbe5936b8 |
children |
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/* * Copyright (c) 2001, 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 sun.jvm.hotspot.debugger.win32; import java.io.Serializable; /** Describes an LDT entry. (Some of the descriptions are taken directly from Microsoft's documentation and are copyrighted by Microsoft.) */ class Win32LDTEntry implements Serializable { private short limitLow; private short baseLow; private byte baseMid; private byte flags1; private byte flags2; private byte baseHi; private Win32LDTEntry() {} public Win32LDTEntry(short limitLow, short baseLow, byte baseMid, byte flags1, byte flags2, byte baseHi) { this.limitLow = limitLow; this.baseLow = baseLow; this.baseMid = baseMid; this.flags1 = flags1; this.flags2 = flags2; this.baseHi = baseHi; } /** Returns base address of segment */ public long getBase() { return ( (baseLow & 0xFFFF) | ((baseMid & 0xFF) << 16) | ((baseHi & 0xFF) << 24)) & 0xFFFFFFFF; } public short getLimitLow() { return limitLow; } public short getBaseLow() { return baseLow; } public byte getBaseMid() { return baseMid; } public byte getBaseHi() { return baseHi; } // FIXME: must verify mask and shift are correct /** Describes type of segment. See TYPE_ portion of {@link sun.jvm.hotspot.debugger.win32.Win32LDTEntryConstants}. */ public int getType() { return (flags1 & 0x1F); } // FIXME: verify mask and shift are correct /** Privilege level of descriptor: 0 = most privileged, 3 = least privileged */ public int getPrivilegeLevel() { return ((flags1 & 0x60) >> 5); } // FIXME: verify mask is correct /** Is segment present in physical memory? */ public boolean isSegmentPhysical() { return ((flags1 & 0x70) != 0); } // FIXME: verify mask and shift are correct /** High bits (16-19) of the address of the last byte of the segment */ public int getLimitHi() { return (flags2 & 0x0F); } // FIXME: verify mask is correct /** <P> Size of segment. If the segment is a data segment, this member contains 1 if the segment is larger than 64 kilobytes (K) or 0 if the segment is smaller than or equal to 64K. </P> <P> If the segment is a code segment, this member contains 1 if the segment is a code segment and runs with the default (native mode) instruction set. This member contains 0 if the code segment is an 80286 code segment and runs with 16-bit offsets and the 80286-compatible instruction set. </P> */ public boolean isDefaultBig() { return ((flags2 & 0x40) != 0); } // FIXME: verify mask is correct /** Returns true if segment is page granular, false if byte granular. */ public boolean isPageGranular() { return ((flags2 & 0x80) != 0); } }