wine/include/stackframe.h
Marcus Meissner 317af320cf Optimized include/*.h: (recursively) include all headers needed by
this .h file, but only those. Necessary fixes to a lot of .c files,
started optimizing "windows.h" away from some of them. Moved
GetCurrentTask prototype to wine/winbase16.h.
1999-02-17 13:51:06 +00:00

91 lines
3.2 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 "ldt.h"
#include "thread.h"
#pragma pack(1)
/* 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 actual return address */
DWORD args[1]; /* 28 arguments to 16-bit function */
} STACK32FRAME;
/* 16-bit stack layout after CallFrom16() */
typedef struct
{
STACK32FRAME *frame32; /* 00 32-bit frame from last CallTo16() */
DWORD ebp; /* 04 full 32-bit content of ebp */
WORD mutex_count; /* 08 Win16Mutex recursion count */
WORD fs; /* 0a fs */
WORD entry_ip; /* 0c ip of entry point */
WORD ds; /* 0e ds */
WORD entry_cs; /* 10 cs of entry point */
WORD es; /* 12 es */
DWORD entry_point; /* 14 32-bit entry point to call */
WORD bp; /* 18 16-bit bp */
WORD ip; /* 1a return address */
WORD cs; /* 1c */
} STACK16FRAME;
#pragma pack(4)
#define THREAD_STACK16(thdb) ((STACK16FRAME*)PTR_SEG_TO_LIN((thdb)->cur_stack))
#define CURRENT_STACK16 (THREAD_STACK16(THREAD_Current()))
#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
*/
#define STACK16_PUSH(thdb,size) \
(memmove((char*)THREAD_STACK16(thdb)-(size),THREAD_STACK16(thdb), \
sizeof(STACK16FRAME)), \
(thdb)->cur_stack -= (size), \
(SEGPTR)((thdb)->cur_stack + sizeof(STACK16FRAME)))
/* Pop bytes from the 16-bit stack of a thread */
#define STACK16_POP(thdb,size) \
(memmove((char*)THREAD_STACK16(thdb)+(size),THREAD_STACK16(thdb), \
sizeof(STACK16FRAME)), \
(thdb)->cur_stack += (size))
/* Push a DWORD on the 32-bit stack */
#define STACK32_PUSH(context,val) (*--((DWORD *)ESP_reg(context)) = (val))
/* Pop a DWORD from the 32-bit stack */
#define STACK32_POP(context) (*((DWORD *)ESP_reg(context))++)
/* Win32 register functions */
#define REGS_ENTRYPOINT(name) void WINAPI __regs_##name( CONTEXT *context )
#endif /* __WINE_STACKFRAME_H */