2012-08-28 02:41:49 +08:00
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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2012-10-19 11:48:42 +08:00
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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2012-08-28 02:41:49 +08:00
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#ifndef js_cpucfg___
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#define js_cpucfg___
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#define JS_HAVE_LONG_LONG
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#if defined(_WIN64)
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# if defined(_M_X64) || defined(_M_AMD64) || defined(_AMD64_)
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# define IS_LITTLE_ENDIAN 1
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# undef IS_BIG_ENDIAN
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# define JS_BYTES_PER_DOUBLE 8
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# define JS_BYTES_PER_WORD 8
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# define JS_BITS_PER_WORD_LOG2 6
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# define JS_ALIGN_OF_POINTER 8
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# else /* !(defined(_M_X64) || defined(_M_AMD64) || defined(_AMD64_)) */
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# error "CPU type is unknown"
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# endif /* !(defined(_M_X64) || defined(_M_AMD64) || defined(_AMD64_)) */
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#elif defined(_WIN32) || defined(XP_OS2)
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# ifdef __WATCOMC__
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# define HAVE_VA_LIST_AS_ARRAY 1
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# endif
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# define IS_LITTLE_ENDIAN 1
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# undef IS_BIG_ENDIAN
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# define JS_BYTES_PER_DOUBLE 8
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# define JS_BYTES_PER_WORD 4
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# define JS_BITS_PER_WORD_LOG2 5
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# define JS_ALIGN_OF_POINTER 4
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#elif defined(__APPLE__)
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# if __LITTLE_ENDIAN__
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# define IS_LITTLE_ENDIAN 1
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# undef IS_BIG_ENDIAN
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# elif __BIG_ENDIAN__
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# undef IS_LITTLE_ENDIAN
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# define IS_BIG_ENDIAN 1
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# endif
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#elif defined(JS_HAVE_ENDIAN_H)
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# include <endian.h>
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# if defined(__BYTE_ORDER)
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# if __BYTE_ORDER == __LITTLE_ENDIAN
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# define IS_LITTLE_ENDIAN 1
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# undef IS_BIG_ENDIAN
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# elif __BYTE_ORDER == __BIG_ENDIAN
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# undef IS_LITTLE_ENDIAN
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# define IS_BIG_ENDIAN 1
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# endif
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# else /* !defined(__BYTE_ORDER) */
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# error "endian.h does not define __BYTE_ORDER. Cannot determine endianness."
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# endif
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/* BSDs */
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#elif defined(JS_HAVE_MACHINE_ENDIAN_H)
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# include <sys/types.h>
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# include <machine/endian.h>
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# if defined(_BYTE_ORDER)
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# if _BYTE_ORDER == _LITTLE_ENDIAN
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# define IS_LITTLE_ENDIAN 1
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# undef IS_BIG_ENDIAN
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# elif _BYTE_ORDER == _BIG_ENDIAN
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# undef IS_LITTLE_ENDIAN
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# define IS_BIG_ENDIAN 1
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# endif
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# else /* !defined(_BYTE_ORDER) */
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# error "machine/endian.h does not define _BYTE_ORDER. Cannot determine endianness."
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# endif
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#elif defined(JS_HAVE_SYS_ISA_DEFS_H)
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# include <sys/isa_defs.h>
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# if defined(_BIG_ENDIAN)
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# undef IS_LITTLE_ENDIAN
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# define IS_BIG_ENDIAN 1
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# elif defined(_LITTLE_ENDIAN)
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# define IS_LITTLE_ENDIAN 1
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# undef IS_BIG_ENDIAN
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# else /* !defined(_LITTLE_ENDIAN) */
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# error "sys/isa_defs.h does not define _BIG_ENDIAN or _LITTLE_ENDIAN. Cannot determine endianness."
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# endif
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# if !defined(JS_STACK_GROWTH_DIRECTION)
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# if defined(_STACK_GROWS_UPWARD)
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# define JS_STACK_GROWTH_DIRECTION (1)
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# elif defined(_STACK_GROWS_DOWNWARD)
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# define JS_STACK_GROWTH_DIRECTION (-1)
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# endif
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# endif
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#elif defined(__sparc) || defined(__sparc__) || \
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defined(_POWER) || defined(__powerpc__) || \
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defined(__ppc__) || defined(__hppa) || \
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defined(_MIPSEB) || defined(_BIG_ENDIAN)
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/* IA64 running HP-UX will have _BIG_ENDIAN defined.
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* IA64 running Linux will have endian.h and be handled above.
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*/
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# undef IS_LITTLE_ENDIAN
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# define IS_BIG_ENDIAN 1
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#else /* !defined(__sparc) && !defined(__sparc__) && ... */
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# error "Cannot determine endianness of your platform. Please add support to jscpucfg.h."
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#endif
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#ifndef JS_STACK_GROWTH_DIRECTION
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# ifdef __hppa
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# define JS_STACK_GROWTH_DIRECTION (1)
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# else
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# define JS_STACK_GROWTH_DIRECTION (-1)
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# endif
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#endif
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#endif /* js_cpucfg___ */
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