mono/io-layer/context.h

   1 /*
   2  * context.h:  Processor-specific register contexts
   3  *
   4  * Author:
   5  *      Dick Porter (dick@ximian.com)
   6  *
   7  * (C) 2002 Ximian, Inc.
   8  */
   9
  10 #ifndef _WAPI_CONTEXT_H_
  11 #define _WAPI_CONTEXT_H_
  12
  13 #include <glib.h>
  14
  15 #include "mono/io-layer/wapi.h"
  16
  17 /* This part is x86-specific.  MSDN states that CONTEXT is defined
  18  * also for MIPS, Alpha and PPC processors.
  19  */
  20
  21 #define SIZE_OF_80387_REGISTERS 80
  22
  23 #define CONTEXT_i386 0x00010000
  24 #define CONTEXT_i486 0x00010000
  25
  26 #define CONTEXT_CONTROL                 (CONTEXT_i386 | 0x00000001L)
  27 #define CONTEXT_INTEGER                 (CONTEXT_i386 | 0x00000002L)
  28 #define CONTEXT_SEGMENTS                (CONTEXT_i386 | 0x00000004L)
  29 #define CONTEXT_FLOATING_POINT          (CONTEXT_i386 | 0x00000008L)
  30 #define CONTEXT_DEBUG_REGISTERS         (CONTEXT_i386 | 0x00000010L)
  31 #define CONTEXT_EXTENDED_REGISTERS      (CONTEXT_i386 | 0x00000020L)
  32
  33 #define CONTEXT_FULL (CONTEXT_CONTROL | CONTEXT_INTEGER | CONTEXT_SEGMENTS)
  34
  35 #define MAXIMUM_SUPPORTED_EXTENSION 512
  36
  37 typedef struct
  38 {
  39         guint32 ControlWord;
  40         guint32 StatusWord;
  41         guint32 TagWord;
  42         guint32 ErrorOffset;
  43         guint32 ErrorSelector;
  44         guint32 DataOffset;
  45         guint32 DataSelector;
  46         guint8 RegisterArea[SIZE_OF_80387_REGISTERS];
  47         guint32 Cr0NpxState;
  48 } WapiFloatingSaveArea;
  49
  50 typedef struct
  51 {
  52         guint32 ContextFlags;
  53         guint32 Dr0;
  54         guint32 Dr1;
  55         guint32 Dr2;
  56         guint32 Dr3;
  57         guint32 Dr6;
  58         guint32 Dr7;
  59
  60         WapiFloatingSaveArea FloatSave;
  61
  62         guint32 SegGs;
  63         guint32 SegFs;
  64         guint32 SegEs;
  65         guint32 SegDs;
  66
  67         guint32 Edi;
  68         guint32 Esi;
  69         guint32 Ebx;
  70         guint32 Edx;
  71         guint32 Ecx;
  72         guint32 Eax;
  73
  74         guint32 Ebp;
  75         guint32 Eip;
  76         guint32 SegCs;
  77         guint32 EFlags;
  78         guint32 Esp;
  79         guint32 SegSs;
  80
  81         guint8 ExtendedRegisters[MAXIMUM_SUPPORTED_EXTENSION];
  82 } WapiContext;
  83
  84 G_BEGIN_DECLS
  85
  86 extern gboolean GetThreadContext(gpointer handle, WapiContext *context);
  87
  88 G_END_DECLS
  89
  90 #endif /* _WAPI_COMPEX_H_ */