reactos/lib/dbghelp/stackframe.h

   1 /*
   2  * 16-bit and 32-bit mode stack frame layout
   3  *
   4  * Copyright 1995, 1998 Alexandre Julliard
   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_STACKFRAME_H
  22 #define __WINE_STACKFRAME_H
  23
  24 #include <string.h>
  25 #define NTOS_MODE_USER
  26 #include <ndk/umtypes.h>
  27 #include <ndk/extypes.h>
  28 #include <ndk/rtlfuncs.h>
  29
  30 #define SELECTOROF(ptr)     (HIWORD(ptr))
  31 #define OFFSETOF(ptr)       (LOWORD(ptr))
  32
  33 #include <pshpack1.h>
  34
  35   /* 32-bit stack layout after CallTo16() */
  36 typedef struct _STACK32FRAME
  37 {
  38     DWORD   restore_addr;   /* 00 return address for restoring code selector */
  39     DWORD   codeselector;   /* 04 code selector to restore */
  40     EXCEPTION_REGISTRATION_RECORD frame;  /* 08 Exception frame */
  41     SEGPTR  frame16;        /* 10 16-bit frame from last CallFrom16() */
  42     DWORD   edi;            /* 14 saved registers */
  43     DWORD   esi;            /* 18 */
  44     DWORD   ebx;            /* 1c */
  45     DWORD   ebp;            /* 20 saved 32-bit frame pointer */
  46     DWORD   retaddr;        /* 24 return address */
  47     DWORD   target;         /* 28 target address / CONTEXT86 pointer */
  48     DWORD   nb_args;        /* 2c number of 16-bit argument bytes */
  49 } STACK32FRAME;
  50
  51   /* 16-bit stack layout after CallFrom16() */
  52 typedef struct _STACK16FRAME
  53 {
  54     STACK32FRAME *frame32;        /* 00 32-bit frame from last CallTo16() */
  55     DWORD         edx;            /* 04 saved registers */
  56     DWORD         ecx;            /* 08 */
  57     DWORD         ebp;            /* 0c */
  58     WORD          ds;             /* 10 */
  59     WORD          es;             /* 12 */
  60     WORD          fs;             /* 14 */
  61     WORD          gs;             /* 16 */
  62     DWORD         callfrom_ip;    /* 18 callfrom tail IP */
  63     DWORD         module_cs;      /* 1c module code segment */
  64     DWORD         relay;          /* 20 relay function address */
  65     WORD          entry_ip;       /* 22 entry point IP */
  66     DWORD         entry_point;    /* 26 API entry point to call, reused as mutex count */
  67     WORD          bp;             /* 2a 16-bit stack frame chain */
  68     WORD          ip;             /* 2c return address */
  69     WORD          cs;             /* 2e */
  70 } STACK16FRAME;
  71
  72 #include <poppack.h>
  73
  74 static inline int MapSL(int size)
  75 {
  76 return -1;
  77 }
  78
  79 #define CURRENT_STACK16      ((STACK16FRAME*)MapSL(NtCurrentTeb()->cur_stack))
  80 #define CURRENT_DS           (CURRENT_STACK16->ds)
  81
  82
  83 #endif /* __WINE_STACKFRAME_H */