dlls/kernel/flatthunk.h

   1 /*
   2  * Win95 Flat Thunk data structures
   3  *
   4  * Copyright 1998 Ulrich Weigand
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #ifndef __WINE_FLATTHUNK_H
  22 #define __WINE_FLATTHUNK_H
  23
  24 #include "windef.h"
  25
  26 struct ThunkDataCommon
  27 {
  28     char                   magic[4];         /* 00 */
  29     DWORD                  checksum;         /* 04 */
  30 };
  31
  32 struct ThunkDataLS16
  33 {
  34     struct ThunkDataCommon common;           /* 00 */
  35     SEGPTR                 targetTable;      /* 08 */
  36     DWORD                  firstTime;        /* 0C */
  37 };
  38
  39 struct ThunkDataLS32
  40 {
  41     struct ThunkDataCommon common;           /* 00 */
  42     DWORD *                targetTable;      /* 08 */
  43     char                   lateBinding[4];   /* 0C */
  44     DWORD                  flags;            /* 10 */
  45     DWORD                  reserved1;        /* 14 */
  46     DWORD                  reserved2;        /* 18 */
  47     DWORD                  offsetQTThunk;    /* 1C */
  48     DWORD                  offsetFTProlog;   /* 20 */
  49 };
  50
  51 struct ThunkDataSL16
  52 {
  53     struct ThunkDataCommon common;            /* 00 */
  54     DWORD                  flags1;            /* 08 */
  55     DWORD                  reserved1;         /* 0C */
  56     struct ThunkDataSL *   fpData;            /* 10 */
  57     SEGPTR                 spData;            /* 14 */
  58     DWORD                  reserved2;         /* 18 */
  59     char                   lateBinding[4];    /* 1C */
  60     DWORD                  flags2;            /* 20 */
  61     DWORD                  reserved3;         /* 20 */
  62     SEGPTR                 apiDatabase;       /* 28 */
  63 };
  64
  65 struct ThunkDataSL32
  66 {
  67     struct ThunkDataCommon common;            /* 00 */
  68     DWORD                  reserved1;         /* 08 */
  69     struct ThunkDataSL *   data;              /* 0C */
  70     char                   lateBinding[4];    /* 10 */
  71     DWORD                  flags;             /* 14 */
  72     DWORD                  reserved2;         /* 18 */
  73     DWORD                  reserved3;         /* 1C */
  74     DWORD                  offsetTargetTable; /* 20 */
  75 };
  76
  77 struct ThunkDataSL
  78 {
  79 #if 0
  80     This structure differs from the Win95 original,
  81     but this should not matter since it is strictly internal to
  82     the thunk handling routines in KRNL386 / KERNEL32.
  83
  84     For reference, here is the Win95 layout:
  85
  86     struct ThunkDataCommon common;            /* 00 */
  87     DWORD                  flags1;            /* 08 */
  88     SEGPTR                 apiDatabase;       /* 0C */
  89     WORD                   exePtr;            /* 10 */
  90     WORD                   segMBA;            /* 12 */
  91     DWORD                  lenMBATotal;       /* 14 */
  92     DWORD                  lenMBAUsed;        /* 18 */
  93     DWORD                  flags2;            /* 1C */
  94     char                   pszDll16[256];     /* 20 */
  95     char                   pszDll32[256];     /*120 */
  96
  97     We do it differently since all our thunk handling is done
  98     by 32-bit code. Therefore we do not need do provide
  99     easy access to this data, especially the process target
 100     table database, for 16-bit code.
 101 #endif
 102
 103     struct ThunkDataCommon common;
 104     DWORD                  flags1;
 105     struct SLApiDB *       apiDB;
 106     struct SLTargetDB *    targetDB;
 107     DWORD                  flags2;
 108     char                   pszDll16[256];
 109     char                   pszDll32[256];
 110 };
 111
 112 struct SLTargetDB
 113 {
 114      struct SLTargetDB *   next;
 115      DWORD                 process;
 116      DWORD *               targetTable;
 117 };
 118
 119 struct SLApiDB
 120 {
 121     DWORD                  nrArgBytes;
 122     DWORD                  errorReturnValue;
 123 };
 124
 125
 126 #endif /* __WINE_FLATTHUNK_H */
 127