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f348b8ed6d
This improves integration with other projects. Like for example Guile already has files named jit.c and jit.h; it's easier to manage if lightening uses its own file names.
110 lines
3.1 KiB
C
110 lines
3.1 KiB
C
/*
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* Copyright (C) 2012-2018 Free Software Foundation, Inc.
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*
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* This file is part of GNU lightning.
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*
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* GNU lightning is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published
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* by the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* GNU lightning is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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* License for more details.
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*
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* Authors:
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* Paulo Cesar Pereira de Andrade
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* Andy Wingo
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*/
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#ifndef _jit_endian_h
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#define _jit_endian_h
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include <stddef.h>
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#if defined(__hpux) && defined(__hppa__)
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# include <machine/param.h>
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#endif
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#if defined(__alpha__) && defined(__osf__)
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# include <machine/endian.h>
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#endif
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#ifndef __WORDSIZE
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# if defined(WORDSIZE) /* ppc darwin */
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# define __WORDSIZE WORDSIZE
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# elif defined(__SIZEOF_POINTER__) /* ppc aix */
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# define __WORDSIZE (__SIZEOF_POINTER__ << 3)
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# elif defined(_ILP32) /* hppa hp-ux */
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# define __WORDSIZE 32
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# elif defined(_LP64) /* ia64 hp-ux (with cc +DD64) */
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# define __WORDSIZE 64
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# elif defined(_MIPS_SZPTR) /* mips irix */
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# if _MIPS_SZPTR == 32
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# define __WORDSIZE 32
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# else
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# define __WORDSIZE 64
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# endif
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# else /* From FreeBSD 9.1 stdint.h */
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# if defined(UINTPTR_MAX) && defined(UINT64_MAX) && \
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(UINTPTR_MAX == UINT64_MAX)
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# define __WORDSIZE 64
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# else
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# define __WORDSIZE 32
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# endif
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# endif
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#endif
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#ifndef __LITTLE_ENDIAN
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# if defined(LITTLE_ENDIAN) /* ppc darwin */
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# define __LITTLE_ENDIAN LITTLE_ENDIAN
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# elif defined(__ORDER_LITTLE_ENDIAN__) /* ppc aix */
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# define __LITTLE_ENDIAN __ORDER_LITTLE_ENDIAN__
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# else
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# define __LITTLE_ENDIAN 1234
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# endif
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#endif
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#ifndef __BIG_ENDIAN
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# if defined(BIG_ENDIAN) /* ppc darwin */
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# define __BIG_ENDIAN BIG_ENDIAN
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# elif defined(__ORDER_BIG_ENDIAN__) /* ppc aix */
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# define __BIG_ENDIAN __ORDER_BIG_ENDIAN__
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# else
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# define __BIG_ENDIAN 4321
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# endif
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#endif
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#ifndef __BYTE_ORDER
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# if defined(BYTE_ORDER) /* ppc darwin */
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# define __BYTE_ORDER BYTE_ORDER
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# elif defined(__BYTE_ORDER__) /* ppc aix */
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# define __BYTE_ORDER __BYTE_ORDER__
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# elif defined(_BIG_ENDIAN) /* hppa hp-ux */
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# define __BYTE_ORDER __BIG_ENDIAN
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# elif defined(__BIG_ENDIAN__) /* ia64 hp-ux */
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# define __BYTE_ORDER __BIG_ENDIAN
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# elif defined(__i386__) /* 32 bit x86 solaris */
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# define __BYTE_ORDER __LITTLE_ENDIAN
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# elif defined(__x86_64__) /* 64 bit x86 solaris */
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# define __BYTE_ORDER __LITTLE_ENDIAN
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# elif defined(__MIPSEB) /* mips irix */
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# define __BYTE_ORDER __BIG_ENDIAN
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# else
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# error cannot figure __BYTE_ORDER
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# endif
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#endif
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#if __WORDSIZE == 32
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#define CHOOSE_32_64(x, y) x
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#elif __WORDSIZE == 64
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#define CHOOSE_32_64(x, y) y
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#else
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#error unhandled __WORDSIZE
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#endif
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#define WHEN_64(x) CHOOSE_32_64(/**/, x)
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#endif /* _jit_endian_h */
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