1 /*

     2  * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.

     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  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    24 

    25 package sun.jvm.hotspot.debugger.windbg.ia64;

    26 

    27 import sun.jvm.hotspot.debugger.*;

    28 import sun.jvm.hotspot.debugger.ia64.*;

    29 import sun.jvm.hotspot.debugger.windbg.*;

    30 

    31 class WindbgIA64Thread implements ThreadProxy {

    32   private WindbgDebugger debugger;

    33   private long           sysId;

    34   private boolean        gotID;

    35   private long           id;

    36 

    37   /** The address argument must be the address of the HANDLE of the

    38       desired thread in the target process. */

    39   WindbgIA64Thread(WindbgDebugger debugger, Address addr) {

    40     this.debugger = debugger;

    41     // FIXME: size of data fetched here should be configurable.

    42     // However, making it so would produce a dependency on the "types"

    43     // package from the debugger package, which is not desired.

    44 

    45     // another hack here is that we use sys thread id instead of handle.

    46     // windbg can't get details based on handles it seems.

    47     // I assume that osThread_win32 thread struct has _thread_id (which

    48     // sys thread id) just after handle field.

    49 

    50     this.sysId   = (int) addr.addOffsetTo(debugger.getAddressSize()).getCIntegerAt(0, 4, true);

    51     gotID = false;

    52   }

    53 

    54   WindbgIA64Thread(WindbgDebugger debugger, long sysId) {

    55     this.debugger = debugger;

    56     this.sysId    = sysId;

    57     gotID         = false;

    58   }

    59 

    60   public ThreadContext getContext() throws IllegalThreadStateException {

    61     long[] data = debugger.getThreadIntegerRegisterSet(getThreadID());

    62     WindbgIA64ThreadContext context = new WindbgIA64ThreadContext(debugger);

    63     for (int i = 0; i < data.length; i++) {

    64       context.setRegister(i, data[i]);

    65     }

    66     return context;

    67   }

    68 

    69   public boolean canSetContext() throws DebuggerException {

    70     return false;

    71   }

    72 

    73   public void setContext(ThreadContext thrCtx)

    74     throws IllegalThreadStateException, DebuggerException {

    75     throw new DebuggerException("Unimplemented");

    76   }

    77 

    78   public boolean equals(Object obj) {

    79     if ((obj == null) || !(obj instanceof WindbgIA64Thread)) {

    80       return false;

    81     }

    82 

    83     return (((WindbgIA64Thread) obj).getThreadID() == getThreadID());

    84   }

    85 

    86   public int hashCode() {

    87     return (int) getThreadID();

    88   }

    89 

    90   public String toString() {

    91     return Long.toString(getThreadID());

    92   }

    93 

    94   /** Retrieves the thread ID of this thread by examining the Thread

    95       Information Block. */

    96   private long getThreadID() {

    97     if (!gotID) {

    98        id = debugger.getThreadIdFromSysId(sysId);

    99     }

   100 

   101     return id;

   102   }

   103 }