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678cab02fb
git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@14878 87f5fb63-7c3d-0410-a384-fd976d0f7a62
277 lines
8.0 KiB
C
277 lines
8.0 KiB
C
/*
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* $Id: macros.h,v 1.14 2005-03-10 13:58:13 obarthel Exp $
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*
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* :ts=4
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*
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* Portable ISO 'C' (1994) runtime library for the Amiga computer
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* Copyright (c) 2002-2005 by Olaf Barthel <olsen@sourcery.han.de>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Neither the name of Olaf Barthel nor the names of contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _MACROS_H
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#define _MACROS_H
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/****************************************************************************/
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#ifndef DOS_DOS_H
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#include <dos/dos.h>
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#endif /* DOS_DOS_H */
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/****************************************************************************/
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#define CANNOT !
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#define DO_NOTHING ((void)0)
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#define NO !
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#define NOT !
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#define DO_NOT !
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#define OK (0)
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#define SAME (0)
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#define SEEK_ERROR (-1)
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#define ERROR (-1)
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/****************************************************************************/
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#define NUM_ENTRIES(t) (sizeof(t) / sizeof(t[0]))
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/****************************************************************************/
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#define FLAG_IS_SET(v,f) (((v) & (f)) == (f))
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#define FLAG_IS_CLEAR(v,f) (((v) & (f)) == 0 )
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/****************************************************************************/
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#define SET_FLAG(v,f) ((void)((v) |= (f)))
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#define CLEAR_FLAG(v,f) ((void)((v) &= ~(f)))
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/****************************************************************************/
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/* Macro to get longword-aligned stack space for a structure
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Uses ANSI token catenation to form a name for the char array
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based on the variable name, then creates an appropriately
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typed pointer to point to the first longword boundary in the
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char array allocated. */
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#define D_S(type, name) \
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char a_##name[sizeof(type)+3]; \
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type *name = (type *)((LONG)(a_##name+3) & ~3)
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/****************************************************************************/
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/* BCPL style "NULL"; this should be in <dos/dos.h>. */
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#ifndef ZERO
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#define ZERO ((BPTR)NULL)
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#endif /* ZERO */
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/****************************************************************************/
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/* Constructor and destructor functions, as used by the library for data
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initialization and cleanup. These particular functions are invoked by
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the startup code before and after the main() function is/was called.
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How this works is very compiler specific. We support three flavours
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below. */
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/****************************************************************************/
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#ifdef __SASC
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#define CONSTRUCTOR(name,pri) \
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int __stdargs _STI_##pri##_##name(void); \
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int __stdargs _STI_##pri##_##name(void)
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#define DESTRUCTOR(name,pri) \
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int __stdargs _STD_##pri##_##name(void); \
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int __stdargs _STD_##pri##_##name(void)
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#define CONSTRUCTOR_SUCCEED() \
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return(0)
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#define CONSTRUCTOR_FAIL() \
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return(1)
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#endif /* __SASC */
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/****************************************************************************/
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#ifdef __GNUC__
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#if defined(__amigaos4__)
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#define CONSTRUCTOR(name,pri) \
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STATIC VOID __attribute__((used)) name##_ctor(VOID); \
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STATIC VOID (*__##name##_ctor)(VOID) __attribute__((used,section(".ctors._" #pri))) = name##_ctor; \
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STATIC VOID name##_ctor(VOID)
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#define DESTRUCTOR(name,pri) \
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STATIC VOID __attribute__((used)) name##_dtor(VOID); \
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STATIC VOID (*__##name##_dtor)(VOID) __attribute__((used,section(".dtors._" #pri))) = name##_dtor; \
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STATIC VOID name##_dtor(VOID)
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#else
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#define CONSTRUCTOR(name,pri) \
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STATIC VOID __attribute__((constructor)) __ctor##pri##_##name##(VOID); \
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STATIC void __ctor##pri##_##name##(VOID)
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#define DESTRUCTOR(name,pri) \
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STATIC VOID __attribute__((destructor)) __dtor##pri##_##name##(VOID); \
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STATIC VOID __dtor##pri##_##name##(VOID)
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#endif /* __amigaos4__ */
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#define CONSTRUCTOR_SUCCEED() \
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return
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#define CONSTRUCTOR_FAIL() \
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exit(RETURN_FAIL)
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#endif /* __GNUC__ */
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/****************************************************************************/
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/* These macros are for declaring functions to serve as constructors or
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destructors. In which order these should be invoked is defined by the
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priority, which is a number in the range 0-999. User-supplied
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constructor/destructor functions should have priority 0. That way,
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the user-supplied constructors will be invoked after the library
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constructors and the user-supplied destructors before the library
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destructors. */
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#define CLIB_CONSTRUCTOR(name) CONSTRUCTOR(name, 500)
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#define CLIB_DESTRUCTOR(name) DESTRUCTOR(name, 500)
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#define PROFILE_CONSTRUCTOR(name) CONSTRUCTOR(name, 150)
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#define PROFILE_DESTRUCTOR(name) DESTRUCTOR(name, 150)
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/****************************************************************************/
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/* Magic macros for code profiling, SAS/C style. Normally, you would find
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these in <sprof.h>, which is SAS/C-specific. */
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/****************************************************************************/
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#ifdef __SASC
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extern void ASM _PROLOG(REG(a0,char *));
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extern void ASM _EPILOG(REG(a0,char *));
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#if _PROFILE
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#define PROFILE_OFF() _PROLOG(0L)
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#define PROFILE_ON() _EPILOG(0L)
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#else
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#define PROFILE_OFF() ((void)0)
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#define PROFILE_ON() ((void)0)
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#endif /* _PROFILE */
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#endif /* __SASC */
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/****************************************************************************/
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#ifdef __GNUC__
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#define PROFILE_OFF() ((void)0)
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#define PROFILE_ON() ((void)0)
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#endif /* __GNUC__ */
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/****************************************************************************/
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/* Special data and function attributes; for OS4 most, if not all of them
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are in a file called <amiga_compiler.h> which is pulled in by the
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<exec/types.h> header file. */
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/****************************************************************************/
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#ifndef AMIGA_COMPILER_H
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#ifdef __SASC
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#ifndef ASM
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#define ASM __asm
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#endif /* ASM */
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#ifndef REG
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#define REG(r,p) register __##r p
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#endif /* REG */
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#ifndef INTERRUPT
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#define INTERRUPT __interrupt
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#endif /* INTERRUPT */
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#ifndef INLINE
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#define INLINE __inline
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#endif /* INLINE */
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#endif /* __SASC */
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#ifdef __GNUC__
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#ifndef ASM
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#define ASM
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#endif /* ASM */
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#ifndef REG
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#define REG(r,p) p __asm(#r)
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#endif /* REG */
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#ifndef INTERRUPT
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#define INTERRUPT __attribute__((__interrupt__))
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#endif /* INTERRUPT */
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#ifndef INLINE
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#define INLINE __inline__
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#endif /* INLINE */
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#endif /* __GNUC__ */
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#endif /* AMIGA_COMPILER_H */
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/****************************************************************************/
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#ifndef WEAK
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#ifdef __GNUC__
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#define WEAK __attribute__((weak))
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#else
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#define WEAK /* WEAK */
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#endif /* __GNUC__ */
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#endif /* WEAK */
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/****************************************************************************/
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#ifndef UNUSED
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#ifdef __GNUC__
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#define UNUSED __attribute__((unused))
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#else
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#define UNUSED /* UNUSED */
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#endif /* __GNUC__ */
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#endif /* UNUSED */
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/****************************************************************************/
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#ifndef NOCOMMON
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#ifdef __GNUC__
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#define NOCOMMON __attribute__((nocommon))
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#else
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#define NOCOMMON /* NOCOMMON */
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#endif /* __GNUC__ */
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#endif /* NOCOMMON */
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/****************************************************************************/
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#endif /* _MACROS_H */
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