library/stdlib_constructor.h
/*
* $Id: stdlib_constructor.h,v 1.3 2006-01-08 12:04:25 obarthel Exp $
*
* :ts=4
*
* Portable ISO 'C' (1994) runtime library for the Amiga computer
* Copyright (c) 2002-2015 by Olaf Barthel <obarthel (at) gmx.net>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Neither the name of Olaf Barthel nor the names of contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _STDLIB_CONSTRUCTOR_H
#define _STDLIB_CONSTRUCTOR_H
/****************************************************************************/
/* Constructor and destructor functions, as used by the library for data
initialization and cleanup. These particular functions are invoked by
the startup code before and after the main() function is/was called.
How this works is very compiler specific. We support three flavours
below. */
/****************************************************************************/
#ifdef __SASC
#define CONSTRUCTOR(name,pri) \
int __stdargs _STI_##pri##_##name(void); \
int __stdargs _STI_##pri##_##name(void)
#define DESTRUCTOR(name,pri) \
void __stdargs _STD_##pri##_##name(void); \
void __stdargs _STD_##pri##_##name(void)
#define CONSTRUCTOR_SUCCEED() \
return(0)
#define CONSTRUCTOR_FAIL() \
return(1)
#endif /* __SASC */
/****************************************************************************/
#ifdef __GNUC__
#if defined(__amigaos4__)
#define CONSTRUCTOR(name,pri) \
STATIC VOID __attribute__((used)) name##_ctor(VOID); \
STATIC VOID (*__##name##_ctor)(VOID) __attribute__((used,section(".ctors._" #pri))) = name##_ctor; \
STATIC VOID name##_ctor(VOID)
#define DESTRUCTOR(name,pri) \
STATIC VOID __attribute__((used)) name##_dtor(VOID); \
STATIC VOID (*__##name##_dtor)(VOID) __attribute__((used,section(".dtors._" #pri))) = name##_dtor; \
STATIC VOID name##_dtor(VOID)
#else
#define CONSTRUCTOR(name,pri) \
asm(".stabs \"___INIT_LIST__\",22,0,0,___ctor_" #name); \
asm(".stabs \"___INIT_LIST__\",20,0,0," #pri); \
VOID __ctor_##name##(VOID); \
VOID __ctor_##name##(VOID)
#define DESTRUCTOR(name,pri) \
asm(".stabs \"___EXIT_LIST__\",22,0,0,___dtor_" #name); \
asm(".stabs \"___EXIT_LIST__\",20,0,0," #pri); \
VOID __dtor_##name##(VOID); \
VOID __dtor_##name##(VOID)
#endif /* __amigaos4__ */
#define CONSTRUCTOR_SUCCEED() \
return
#define CONSTRUCTOR_FAIL() \
exit(RETURN_FAIL)
#endif /* __GNUC__ */
/****************************************************************************/
/* These macros are for declaring functions to serve as constructors or
destructors. In which order these should be invoked is defined by the
priority, which is a number in the range 0-999. User-supplied
constructor/destructor functions should have priority 0. That way,
the user-supplied constructors will be invoked after the library
constructors and the user-supplied destructors before the library
destructors. */
#define STDLIB_CONSTRUCTOR(name) CONSTRUCTOR(name, 9)
#define STDLIB_DESTRUCTOR(name) DESTRUCTOR(name, 9)
#define STK_CONSTRUCTOR(name) CONSTRUCTOR(name, 8)
#define STK_DESTRUCTOR(name) DESTRUCTOR(name, 8)
#define STDIO_CONSTRUCTOR(name) CONSTRUCTOR(name, 7)
#define STDIO_DESTRUCTOR(name) DESTRUCTOR(name, 7)
#define FILE_CONSTRUCTOR(name) CONSTRUCTOR(name, 6)
#define FILE_DESTRUCTOR(name) DESTRUCTOR(name, 6)
#define MATH_CONSTRUCTOR(name) CONSTRUCTOR(name, 5)
#define MATH_DESTRUCTOR(name) DESTRUCTOR(name, 5)
#define SOCKET_CONSTRUCTOR(name) CONSTRUCTOR(name, 4)
#define SOCKET_DESTRUCTOR(name) DESTRUCTOR(name, 4)
#define ARG_CONSTRUCTOR(name) CONSTRUCTOR(name, 3)
#define ARG_DESTRUCTOR(name) DESTRUCTOR(name, 3)
#define CLIB_CONSTRUCTOR(name) CONSTRUCTOR(name, 2)
#define CLIB_DESTRUCTOR(name) DESTRUCTOR(name, 2)
#define PROFILE_CONSTRUCTOR(name) CONSTRUCTOR(name, 1)
#define PROFILE_DESTRUCTOR(name) DESTRUCTOR(name, 1)
/****************************************************************************/
#endif /* _STDLIB_CONSTRUCTOR_H */