kolibrios-fun/programs/develop/open watcom/trunk/clib/h/rtinit.h
Sergey Semyonov (Serge) 3a9b8fb8f9 OpenWatcom clib and sdk/sound
git-svn-id: svn://kolibrios.org@359 a494cfbc-eb01-0410-851d-a64ba20cac60
2007-02-19 05:35:21 +00:00

132 lines
5.3 KiB
C

/****************************************************************************
*
* Open Watcom Project
*
* Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
* ========================================================================
*
* This file contains Original Code and/or Modifications of Original
* Code as defined in and that are subject to the Sybase Open Watcom
* Public License version 1.0 (the 'License'). You may not use this file
* except in compliance with the License. BY USING THIS FILE YOU AGREE TO
* ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
* provided with the Original Code and Modifications, and is also
* available at www.sybase.com/developer/opensource.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
* NON-INFRINGEMENT. Please see the License for the specific language
* governing rights and limitations under the License.
*
* ========================================================================
*
* Description: Structures for run-time initialization/finalization.
*
****************************************************************************/
#ifndef __RTINIT_H__
#define __RTINIT_H__
#include "langenvd.h"
#if defined( __PPC__ )
#define __TGT_SYS __TGT_SYS_AXP_PPC
typedef unsigned __type_rtp;
typedef unsigned __type_pad;
typedef void( *__type_rtn ) ( void );
#elif defined( __AXP__ )
#define __TGT_SYS __TGT_SYS_AXP_NT
typedef unsigned __type_rtp;
typedef unsigned __type_pad;
typedef void( *__type_rtn ) ( void );
#elif defined( __MIPS__ )
#define __TGT_SYS __TGT_SYS_MIPS
typedef unsigned __type_rtp;
typedef unsigned __type_pad;
typedef void( *__type_rtn ) ( void );
#else
#define __TGT_SYS __TGT_SYS_X86
typedef unsigned char __type_rtp;
typedef unsigned short __type_pad;
#if defined( __386__ )
typedef void __near( *__type_rtn ) ( void );
#else
typedef void( *__type_rtn ) ( void );
#endif
#endif
#include "langenv.h"
#if defined( __MEDIUM__ ) || defined( __LARGE__ ) || defined( __HUGE__ )
#define __LARGE_CODE__
#endif
// initialization progresses from highest priority to lowest
// finalization progresses from lowest to highest
#pragma pack( 1 )
struct rt_init // structure placed in XI/YI segment
{
__type_rtp rtn_type; // - near=0/far=1 routine indication
// also used when walking table to flag
// completed entries
__type_rtp priority; // - priority (0-highest 255-lowest)
__type_rtn rtn; // - routine
#if !( defined( __LARGE_CODE__ ) || defined( __386__ ) ) || defined( COMP_CFG_COFF )
__type_pad padding; // - padding, when small code ptr
// or when risc cpu
#endif
};
#pragma pack()
#if defined( M_I86 )
#if defined( __LARGE_CODE__ ) /* segmented large code models */
#define YIXI( seg, label, routine, priority ) \
struct rt_init __based( __segname( seg ) ) label = \
{ 1, priority, routine };
#else /* other segmented models */
#define YIXI( seg, label, routine, priority ) \
struct rt_init __based( __segname( seg ) ) label = \
{ 0, priority, routine, 0 };
#endif
#else /* non-segmented architectures */
#define YIXI( seg, label, routine, priority ) \
struct rt_init __based( __segname( seg ) ) label = \
{ 0, priority, routine };
#endif
/*
Use these when you want a global label for the XI/YI structure
*/
#define XI( label, routine, priority ) YIXI( TS_SEG_XI, label, routine, priority )
#define YI( label, routine, priority ) YIXI( TS_SEG_YI, label, routine, priority )
/*
Use these when you don't care about the label on the XI/YI structure
*/
#define __ANON( x ) __anon ## x
#define ANON( x ) __ANON( x )
#define AXI( routine, priority ) static XI( ANON( __LINE__ ), routine, priority )
#define AYI( routine, priority ) static YI( ANON( __LINE__ ), routine, priority )
enum {
INIT_PRIORITY_THREAD = 1, // priority for thread data init
INIT_PRIORITY_FPU = 2, // priority for FPU/EMU init
INIT_PRIORITY_RUNTIME = 10, // priority for run/time initialization
INIT_PRIORITY_IOSTREAM = 20, // priority for IOSTREAM
INIT_PRIORITY_LIBRARY = 32, // default library-initialization priority
INIT_PRIORITY_PROGRAM = 64, // default program-initialization priority
FINI_PRIORITY_DTOR = 40, // priority for module DTOR
DTOR_PRIORITY = 40, // priority for module DTOR
FINI_PRIORITY_EXIT = 16 // when exit() is called, functions between
// 255 and this are called, the rest of the
// fini routines are called from __exit().
};
/* have to turn off, or we get unref'd warnings for AXI & AYI stuff */
#pragma off( unreferenced )
#endif