Make file headers conform to ZFS style standard

[mirror_spl.git] / include / sys / isa_defs.h

diff --git a/include/sys/isa_defs.h b/include/sys/isa_defs.h
index 57a6d366e95b64ceb6cc64661ff2e82151bf3547..6aa78e84c727550f20c14311d95be9416870cf6e 100644 (file)
--- a/include/sys/isa_defs.h
+++ b/include/sys/isa_defs.h
@@ -1,10 +1,30 @@
+/*
+ *  Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
+ *  Copyright (C) 2007 The Regents of the University of California.
+ *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
+ *  Written by Brian Behlendorf <behlendorf1@llnl.gov>.
+ *  UCRL-CODE-235197
+ *
+ *  This file is part of the SPL, Solaris Porting Layer.
+ *  For details, see <http://zfsonlinux.org/>.
+ *
+ *  The SPL is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License as published by the
+ *  Free Software Foundation; either version 2 of the License, or (at your
+ *  option) any later version.
+ *
+ *  The SPL is distributed in the hope that it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with the SPL.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 #ifndef        _SPL_ISA_DEFS_H
 #define        _SPL_ISA_DEFS_H
 
-#ifdef  __cplusplus
-extern "C" {
-#endif
-
 /* x86_64 arch specific defines */
 #if defined(__x86_64) || defined(__x86_64__)
 
@@ -24,6 +44,9 @@ extern "C" {
 #define _LP64
 #endif
 
+#define _ALIGNMENT_REQUIRED            1
+
+
 /* i386 arch specific defines */
 #elif defined(__i386) || defined(__i386__)
 
@@ -39,7 +62,141 @@ extern "C" {
 #define _ILP32
 #endif
 
-#else /* Currently only x86_64 and i386 arches supported */
+#define _ALIGNMENT_REQUIRED            0
+
+/* powerpc (ppc64) 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
+
+/*
+ * Illumos doesn't define _ALIGNMENT_REQUIRED for PPC, so default to 1
+ * out of paranoia.
+ */
+#define _ALIGNMENT_REQUIRED            1
+
+/* 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 _LITTLE_ENDIAN
+#else
+#define _BIG_ENDIAN
+#endif
+
+/*
+ * Illumos doesn't define _ALIGNMENT_REQUIRED for ARM, so default to 1
+ * out of paranoia.
+ */
+#define _ALIGNMENT_REQUIRED            1
+
+/* sparc arch specific defines */
+#elif defined(__sparc) || defined(__sparc__)
+
+#if !defined(__sparc)
+#define __sparc
+#endif
+
+#if !defined(__sparc__)
+#define __sparc__
+#endif
+
+#if defined(__arch64__)
+#if !defined(_LP64)
+#define _LP64
+#endif
+#else
+#if !defined(_ILP32)
+#define _ILP32
+#endif
+#endif
+
+#define _BIG_ENDIAN
+#define _SUNOS_VTOC_16
+#define _ALIGNMENT_REQUIRED            1
+
+/* 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        _BIG_ENDIAN
+
+/*
+ * Illumos doesn't define _ALIGNMENT_REQUIRED for s390, so default to 1
+ * out of paranoia.
+ */
+#define _ALIGNMENT_REQUIRED            1
+
+/* MIPS arch specific defines */
+#elif defined(__mips__)
+
+#if defined(__MIPSEB__)
+#define        _BIG_ENDIAN
+#elif defined(__MIPSEL__)
+#define        _LITTLE_ENDIAN
+#else
+#error MIPS no endian specified
+#endif
+
+#ifndef _LP64
+#define        _ILP32
+#endif
+
+#define        _SUNOS_VTOC_16
+
+/*
+ * Illumos doesn't define _ALIGNMENT_REQUIRED for MIPS, so default to 1
+ * out of paranoia.
+ */
+#define _ALIGNMENT_REQUIRED            1
+
+#else
+/*
+ * Currently supported:
+ * x86_64, i386, arm, powerpc, s390, sparc, and mips
+ */
 #error "Unsupported ISA type"
 #endif
 
@@ -47,6 +204,10 @@ extern "C" {
 #error "Both _ILP32 and _LP64 are defined"
 #endif
 
+#if !defined(_ILP32) && !defined(_LP64)
+#error "Neither _ILP32 or _LP64 are defined"
+#endif
+
 #include <sys/byteorder.h>
 
 #if defined(__LITTLE_ENDIAN) && !defined(_LITTLE_ENDIAN)
@@ -58,11 +219,11 @@ extern "C" {
 #endif
 
 #if defined(_LITTLE_ENDIAN) && defined(_BIG_ENDIAN)
-#error "Both _LITTLE_ENDIAN and __BIG_ENDIAN are defined"
+#error "Both _LITTLE_ENDIAN and _BIG_ENDIAN are defined"
 #endif
 
-#ifdef  __cplusplus
-}
+#if !defined(_LITTLE_ENDIAN) && !defined(_BIG_ENDIAN)
+#error "Neither _LITTLE_ENDIAN or _BIG_ENDIAN are defined"
 #endif
 
 #endif /* _SPL_ISA_DEFS_H */