1 /*
   2  * Copyright (c) 2004, 2011, 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 #ifndef OS_CPU_WINDOWS_X86_VM_UNWIND_WINDOWS_X86_HPP
  26 #define OS_CPU_WINDOWS_X86_VM_UNWIND_WINDOWS_X86_HPP
  27 
  28 
  29 #ifdef AMD64
  30 typedef unsigned char UBYTE;
  31 
  32 #define UNW_FLAG_EHANDLER  0x01
  33 #define UNW_FLAG_UHANDLER  0x02
  34 #define UNW_FLAG_CHAININFO 0x04
  35 
  36 // This structure is used to define an UNWIND_INFO that
  37 // only has an ExceptionHandler.  There are no UnwindCodes
  38 // declared.
  39 typedef struct _UNWIND_INFO_EH_ONLY {
  40     UBYTE Version       : 3;
  41     UBYTE Flags         : 5;
  42     UBYTE SizeOfProlog;
  43     UBYTE CountOfCodes;
  44     UBYTE FrameRegister : 4;
  45     UBYTE FrameOffset   : 4;
  46     union {
  47        OPTIONAL ULONG ExceptionHandler;
  48        OPTIONAL ULONG FunctionEntry;
  49     };
  50     OPTIONAL ULONG ExceptionData[1];
  51 } UNWIND_INFO_EH_ONLY, *PUNWIND_INFO_EH_ONLY;
  52 
  53 
  54 /*
  55 typedef struct _RUNTIME_FUNCTION {
  56     ULONG BeginAddress;
  57     ULONG EndAddress;
  58     ULONG UnwindData;
  59 } RUNTIME_FUNCTION, *PRUNTIME_FUNCTION;
  60 */
  61 
  62 typedef struct _DISPATCHER_CONTEXT {
  63     ULONG64 ControlPc;
  64     ULONG64 ImageBase;
  65     PRUNTIME_FUNCTION FunctionEntry;
  66     ULONG64 EstablisherFrame;
  67     ULONG64 TargetIp;
  68     PCONTEXT ContextRecord;
  69 //    PEXCEPTION_ROUTINE LanguageHandler;
  70     char * LanguageHandler; // double dependency problem
  71     PVOID HandlerData;
  72 } DISPATCHER_CONTEXT, *PDISPATCHER_CONTEXT;
  73 
  74 #if _MSC_VER < 1500
  75 
  76 /* Not needed for VS2008 compiler, comes from winnt.h. */
  77 typedef EXCEPTION_DISPOSITION (*PEXCEPTION_ROUTINE) (
  78     IN PEXCEPTION_RECORD ExceptionRecord,
  79     IN ULONG64 EstablisherFrame,
  80     IN OUT PCONTEXT ContextRecord,
  81     IN OUT PDISPATCHER_CONTEXT DispatcherContext
  82 );
  83 
  84 #endif
  85 
  86 #endif // AMD64
  87 
  88 #endif // OS_CPU_WINDOWS_X86_VM_UNWIND_WINDOWS_X86_HPP