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git.proxmox.com Git - mirror_spl.git/blob - include/spl/sys/isa_defs.h
2 * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
3 * Copyright (C) 2007 The Regents of the University of California.
4 * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
5 * Written by Brian Behlendorf <behlendorf1@llnl.gov>.
8 * This file is part of the SPL, Solaris Porting Layer.
9 * For details, see <http://zfsonlinux.org/>.
11 * The SPL is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the
13 * Free Software Foundation; either version 2 of the License, or (at your
14 * option) any later version.
16 * The SPL is distributed in the hope that it will be useful, but WITHOUT
17 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
21 * You should have received a copy of the GNU General Public License along
22 * with the SPL. If not, see <http://www.gnu.org/licenses/>.
25 #ifndef _SPL_ISA_DEFS_H
26 #define _SPL_ISA_DEFS_H
28 /* x86_64 arch specific defines */
29 #if defined(__x86_64) || defined(__x86_64__)
31 #if !defined(__x86_64)
47 #define _ALIGNMENT_REQUIRED 1
50 /* i386 arch specific defines */
51 #elif defined(__i386) || defined(__i386__)
65 #define _ALIGNMENT_REQUIRED 0
67 /* powerpc (ppc64) arch specific defines */
68 #elif defined(__powerpc) || defined(__powerpc__) || defined(__powerpc64__)
70 #if !defined(__powerpc)
74 #if !defined(__powerpc__)
78 #if defined(__powerpc64__)
89 * Illumos doesn't define _ALIGNMENT_REQUIRED for PPC, so default to 1
92 #define _ALIGNMENT_REQUIRED 1
94 /* arm arch specific defines */
95 #elif defined(__arm) || defined(__arm__) || defined(__aarch64__)
101 #if !defined(__arm__)
105 #if defined(__aarch64__)
115 #if defined(__ARMEL__) || defined(__AARCH64EL__)
116 #define _LITTLE_ENDIAN
122 * Illumos doesn't define _ALIGNMENT_REQUIRED for ARM, so default to 1
125 #define _ALIGNMENT_REQUIRED 1
127 /* sparc arch specific defines */
128 #elif defined(__sparc) || defined(__sparc__)
130 #if !defined(__sparc)
134 #if !defined(__sparc__)
138 #if defined(__arch64__)
149 #define _SUNOS_VTOC_16
150 #define _ALIGNMENT_REQUIRED 1
152 /* s390 arch specific defines */
153 #elif defined(__s390__)
154 #if defined(__s390x__)
167 * Illumos doesn't define _ALIGNMENT_REQUIRED for s390, so default to 1
170 #define _ALIGNMENT_REQUIRED 1
172 /* MIPS arch specific defines */
173 #elif defined(__mips__)
175 #if defined(__MIPSEB__)
177 #elif defined(__MIPSEL__)
178 #define _LITTLE_ENDIAN
180 #error MIPS no endian specified
187 #define _SUNOS_VTOC_16
190 * Illumos doesn't define _ALIGNMENT_REQUIRED for MIPS, so default to 1
193 #define _ALIGNMENT_REQUIRED 1
197 * Currently supported:
198 * x86_64, i386, arm, powerpc, s390, sparc, and mips
200 #error "Unsupported ISA type"
203 #if defined(_ILP32) && defined(_LP64)
204 #error "Both _ILP32 and _LP64 are defined"
207 #if !defined(_ILP32) && !defined(_LP64)
208 #error "Neither _ILP32 or _LP64 are defined"
211 #include <sys/byteorder.h>
213 #if defined(__LITTLE_ENDIAN) && !defined(_LITTLE_ENDIAN)
214 #define _LITTLE_ENDIAN __LITTLE_ENDIAN
217 #if defined(__BIG_ENDIAN) && !defined(_BIG_ENDIAN)
218 #define _BIG_ENDIAN __BIG_ENDIAN
221 #if defined(_LITTLE_ENDIAN) && defined(_BIG_ENDIAN)
222 #error "Both _LITTLE_ENDIAN and _BIG_ENDIAN are defined"
225 #if !defined(_LITTLE_ENDIAN) && !defined(_BIG_ENDIAN)
226 #error "Neither _LITTLE_ENDIAN or _BIG_ENDIAN are defined"
229 #endif /* _SPL_ISA_DEFS_H */