zfs-builds-mm/zfs-2.0.0-rc6/lib/libspl/include/sys/isa_defs.h

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2020-11-15 11:35:49 +01:00
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_ISA_DEFS_H
#define _SYS_ISA_DEFS_H
#ifdef __cplusplus
extern "C" {
#endif
/* x86_64 arch specific defines */
#if defined(__x86_64) || defined(__x86_64__)
#if !defined(__x86_64)
#define __x86_64
#endif
#if !defined(__amd64)
#define __amd64
#endif
#if !defined(__x86)
#define __x86
#endif
#if defined(_ILP32)
/* x32-specific defines; careful to *not* define _LP64 here */
#else
#if !defined(_LP64)
#define _LP64
#endif
#endif
#if !defined(_ZFS_LITTLE_ENDIAN)
#define _ZFS_LITTLE_ENDIAN
#endif
#define _SUNOS_VTOC_16
#define HAVE_EFFICIENT_UNALIGNED_ACCESS
/* i386 arch specific defines */
#elif defined(__i386) || defined(__i386__)
#if !defined(__i386)
#define __i386
#endif
#if !defined(__x86)
#define __x86
#endif
#if !defined(_ILP32)
#define _ILP32
#endif
#if !defined(_ZFS_LITTLE_ENDIAN)
#define _ZFS_LITTLE_ENDIAN
#endif
#define _SUNOS_VTOC_16
#define HAVE_EFFICIENT_UNALIGNED_ACCESS
/* powerpc arch specific defines */
#elif defined(__powerpc) || defined(__powerpc__) || defined(__powerpc64__)
#if !defined(__powerpc)
#define __powerpc
#endif
#if !defined(__powerpc__)
#define __powerpc__
#endif
#if defined(__powerpc64__)
#if !defined(_LP64)
#define _LP64
#endif
#else
#if !defined(_ILP32)
#define _ILP32
#endif
#endif
#define _SUNOS_VTOC_16
#define HAVE_EFFICIENT_UNALIGNED_ACCESS
#if defined(__BYTE_ORDER)
#if defined(__BIG_ENDIAN) && __BYTE_ORDER == __BIG_ENDIAN
#define _ZFS_BIG_ENDIAN
#elif defined(__LITTLE_ENDIAN) && __BYTE_ORDER == __LITTLE_ENDIAN
#define _ZFS_LITTLE_ENDIAN
#endif
#elif defined(_BYTE_ORDER)
#if defined(_BIG_ENDIAN) && _BYTE_ORDER == _BIG_ENDIAN
#define _ZFS_BIG_ENDIAN
#elif defined(_LITTLE_ENDIAN) && _BYTE_ORDER == _LITTLE_ENDIAN
#define _ZFS_LITTLE_ENDIAN
#endif
#elif defined(_BIG_ENDIAN) && !defined(_LITTLE_ENDIAN)
#define _ZFS_BIG_ENDIAN
#elif defined(_LITTLE_ENDIAN) && !defined(_BIG_ENDIAN)
#define _ZFS_LITTLE_ENDIAN
#endif
/* arm arch specific defines */
#elif defined(__arm) || defined(__arm__) || defined(__aarch64__)
#if !defined(__arm)
#define __arm
#endif
#if !defined(__arm__)
#define __arm__
#endif
#if defined(__aarch64__)
#if !defined(_LP64)
#define _LP64
#endif
#else
#if !defined(_ILP32)
#define _ILP32
#endif
#endif
#if defined(__ARMEL__) || defined(__AARCH64EL__)
#define _ZFS_LITTLE_ENDIAN
#else
#define _ZFS_BIG_ENDIAN
#endif
#define _SUNOS_VTOC_16
#if defined(__ARM_FEATURE_UNALIGNED)
#define HAVE_EFFICIENT_UNALIGNED_ACCESS
#endif
/* sparc arch specific defines */
#elif defined(__sparc) || defined(__sparc__)
#if !defined(__sparc)
#define __sparc
#endif
#if !defined(__sparc__)
#define __sparc__
#endif
#define _ZFS_BIG_ENDIAN
#define _SUNOS_VTOC_16
#if defined(__arch64__)
#if !defined(_LP64)
#define _LP64
#endif
#else
#if !defined(_ILP32)
#define _ILP32
#endif
#endif
/* s390 arch specific defines */
#elif defined(__s390__)
#if defined(__s390x__)
#if !defined(_LP64)
#define _LP64
#endif
#else
#if !defined(_ILP32)
#define _ILP32
#endif
#endif
#define _ZFS_BIG_ENDIAN
#define _SUNOS_VTOC_16
/* MIPS arch specific defines */
#elif defined(__mips__)
#if defined(__MIPSEB__)
#define _ZFS_BIG_ENDIAN
#elif defined(__MIPSEL__)
#define _ZFS_LITTLE_ENDIAN
#else
#error MIPS no endian specified
#endif
#if !defined(_LP64) && !defined(_ILP32)
#define _ILP32
#endif
#define _SUNOS_VTOC_16
/*
* RISC-V arch specific defines
* only RV64G (including atomic) LP64 is supported yet
*/
#elif defined(__riscv) && defined(_LP64) && _LP64 && \
defined(__riscv_atomic) && __riscv_atomic
#ifndef __riscv__
#define __riscv__
#endif
#ifndef __rv64g__
#define __rv64g__
#endif
#define _ZFS_LITTLE_ENDIAN
#define _SUNOS_VTOC_16
#else
/*
* Currently supported:
* x86_64, x32, i386, arm, powerpc, s390, sparc, mips, and RV64G
*/
#error "Unsupported ISA type"
#endif
#if defined(_ILP32) && defined(_LP64)
#error "Both _ILP32 and _LP64 are defined"
#endif
#if !defined(_ILP32) && !defined(_LP64)
#error "Neither _ILP32 or _LP64 are defined"
#endif
#if defined(_ZFS_LITTLE_ENDIAN) && defined(_ZFS_BIG_ENDIAN)
#error "Both _ZFS_LITTLE_ENDIAN and _ZFS_BIG_ENDIAN are defined"
#endif
#if !defined(_ZFS_LITTLE_ENDIAN) && !defined(_ZFS_BIG_ENDIAN)
#error "Neither _ZFS_LITTLE_ENDIAN nor _ZFS_BIG_ENDIAN are defined"
#endif
#ifdef __cplusplus
}
#endif
#endif /* _SYS_ISA_DEFS_H */