| /* |
| * 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.cdbg; |
| |
| import sun.jvm.hotspot.debugger.*; |
| |
| /** Describes in an abstract sense the kind of debug events which may |
| be received from the target process. On UNIX platforms these are |
| typically signals intercepted via ptrace or some other mechanism, |
| while on Windows they are usually exceptions. Also describes |
| certain types of events like loading and unloading of DSOs/DLLs |
| ("LoadObjects"). */ |
| |
| public interface DebugEvent { |
| public static class Type { |
| private Type() {} |
| /** Indicates a DSO/DLL was loaded by the target process */ |
| public static final Type LOADOBJECT_LOAD = new Type(); |
| /** Indicates a DSO/DLL was unloaded by the target process */ |
| public static final Type LOADOBJECT_UNLOAD = new Type(); |
| /** Indicates a breakpoint was hit */ |
| public static final Type BREAKPOINT = new Type(); |
| /** Indicates a single machine instruction was stepped */ |
| public static final Type SINGLE_STEP = new Type(); |
| /** Indicates an unmapped memory address was read from or written |
| to by the target process */ |
| public static final Type ACCESS_VIOLATION = new Type(); |
| /** Indicates an event of an unknown type occurred in the target |
| process (catch-all for implementations; but add more event |
| types) */ |
| public static final Type UNKNOWN = new Type(); |
| } |
| |
| /** The type of this debug event; BREAKPOINT, SINGLE_STEP, etc. */ |
| public Type getType(); |
| |
| /** Retrieves the ThreadProxy for the thread on which the event |
| occurred. This is always present. */ |
| public ThreadProxy getThread(); |
| |
| /** For BREAKPOINT, SINGLE_STEP, and ACCESS_VIOLATION events, |
| returns the program counter at which the event occurred. For |
| other types of events returns an undefined value. */ |
| public Address getPC(); |
| |
| /** For ACCESS_VIOLATION events, indicates whether the fault |
| occurred on a write (vs. a read). For other types of events |
| returns an undefined value. */ |
| public boolean getWasWrite(); |
| |
| /** For ACCESS_VIOLATION events, returns the address at which the |
| fault occurred. For LOADOBJECT_LOAD and LOADOBJECT_UNLOAD |
| events, returns the base address of the loadobject in the target |
| process's address space. For other types of events returns an |
| undefined value. */ |
| public Address getAddress(); |
| |
| /** For UNKNOWN events, may return a detail message or may return |
| null. For other types of events returns an undefined value. */ |
| public String getUnknownEventDetail(); |
| } |