mirror of
https://github.com/reactos/wine.git
synced 2024-11-29 14:40:56 +00:00
112 lines
3.7 KiB
C
112 lines
3.7 KiB
C
/*
|
|
* 16-bit and 32-bit mode stack frame layout
|
|
*
|
|
* Copyright 1995, 1998 Alexandre Julliard
|
|
*/
|
|
|
|
#ifndef __WINE_STACKFRAME_H
|
|
#define __WINE_STACKFRAME_H
|
|
|
|
#include <string.h>
|
|
|
|
#include "thread.h"
|
|
#include "winnt.h"
|
|
#include "wine/winbase16.h"
|
|
|
|
#include "pshpack1.h"
|
|
|
|
/* 32-bit stack layout after CallTo16() */
|
|
typedef struct _STACK32FRAME
|
|
{
|
|
SEGPTR frame16; /* 00 16-bit frame from last CallFrom16() */
|
|
DWORD restore_addr; /* 04 return address for restoring code selector */
|
|
DWORD codeselector; /* 08 code selector to restore */
|
|
DWORD edi; /* 0c saved registers */
|
|
DWORD esi; /* 10 */
|
|
DWORD edx; /* 14 */
|
|
DWORD ecx; /* 18 */
|
|
DWORD ebx; /* 1c */
|
|
DWORD ebp; /* 20 saved 32-bit frame pointer */
|
|
DWORD retaddr; /* 24 return address */
|
|
DWORD target; /* 28 target address / CONTEXT86 pointer */
|
|
DWORD nb_args; /* 2c number of 16-bit argument bytes */
|
|
} STACK32FRAME;
|
|
|
|
/* 16-bit stack layout after CallFrom16() */
|
|
typedef struct _STACK16FRAME
|
|
{
|
|
STACK32FRAME *frame32; /* 00 32-bit frame from last CallTo16() */
|
|
DWORD edx; /* 04 saved registers */
|
|
DWORD ecx; /* 08 */
|
|
DWORD ebp; /* 0c */
|
|
WORD ds; /* 10 */
|
|
WORD es; /* 12 */
|
|
WORD fs; /* 14 */
|
|
WORD gs; /* 16 */
|
|
DWORD callfrom_ip; /* 18 callfrom tail IP */
|
|
DWORD module_cs; /* 1c module code segment */
|
|
DWORD relay; /* 20 relay function address */
|
|
WORD entry_ip; /* 22 entry point IP */
|
|
DWORD entry_point; /* 26 API entry point to call, reused as mutex count */
|
|
WORD bp; /* 2a 16-bit stack frame chain */
|
|
WORD ip; /* 2c return address */
|
|
WORD cs; /* 2e */
|
|
} STACK16FRAME;
|
|
|
|
#include "poppack.h"
|
|
|
|
#define THREAD_STACK16(teb) ((STACK16FRAME*)MapSL((teb)->cur_stack))
|
|
#define CURRENT_STACK16 (THREAD_STACK16(NtCurrentTeb()))
|
|
#define CURRENT_DS (CURRENT_STACK16->ds)
|
|
|
|
/* varargs lists on the 16-bit stack */
|
|
|
|
typedef void *VA_LIST16;
|
|
|
|
#define __VA_ROUNDED16(type) \
|
|
((sizeof(type) + sizeof(WORD) - 1) / sizeof(WORD) * sizeof(WORD))
|
|
#define VA_START16(list) ((list) = (VA_LIST16)(CURRENT_STACK16 + 1))
|
|
#define VA_ARG16(list,type) \
|
|
(((list) = (VA_LIST16)((char *)(list) + __VA_ROUNDED16(type))), \
|
|
*((type *)(void *)((char *)(list) - __VA_ROUNDED16(type))))
|
|
#define VA_END16(list) ((void)0)
|
|
|
|
|
|
/* Push bytes on the 16-bit stack of a thread;
|
|
* return a segptr to the first pushed byte
|
|
*/
|
|
static inline SEGPTR WINE_UNUSED stack16_push( int size )
|
|
{
|
|
TEB *teb = NtCurrentTeb();
|
|
STACK16FRAME *frame = THREAD_STACK16(teb);
|
|
memmove( (char*)frame - size, frame, sizeof(*frame) );
|
|
teb->cur_stack -= size;
|
|
return (SEGPTR)(teb->cur_stack + sizeof(*frame));
|
|
}
|
|
|
|
/* Pop bytes from the 16-bit stack of a thread */
|
|
static inline void WINE_UNUSED stack16_pop( int size )
|
|
{
|
|
TEB *teb = NtCurrentTeb();
|
|
STACK16FRAME *frame = THREAD_STACK16(teb);
|
|
memmove( (char*)frame + size, frame, sizeof(*frame) );
|
|
teb->cur_stack += size;
|
|
}
|
|
|
|
/* Push a DWORD on the 32-bit stack */
|
|
static inline void WINE_UNUSED stack32_push( CONTEXT86 *context, DWORD val )
|
|
{
|
|
context->Esp -= sizeof(DWORD);
|
|
*(DWORD *)context->Esp = val;
|
|
}
|
|
|
|
/* Pop a DWORD from the 32-bit stack */
|
|
static inline DWORD WINE_UNUSED stack32_pop( CONTEXT86 *context )
|
|
{
|
|
DWORD ret = *(DWORD *)context->Esp;
|
|
context->Esp += sizeof(DWORD);
|
|
return ret;
|
|
}
|
|
|
|
#endif /* __WINE_STACKFRAME_H */
|