zfs/include/os/freebsd/spl/sys/ccompile.h

275 lines
7.4 KiB
C

/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_CCOMPILE_H
#define _SYS_CCOMPILE_H
/*
* This file contains definitions designed to enable different compilers
* to be used harmoniously on Solaris systems.
*/
#ifdef __cplusplus
extern "C" {
#endif
/*
* Allow for version tests for compiler bugs and features.
*/
#if defined(__GNUC__)
#define __GNUC_VERSION \
(__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
#else
#define __GNUC_VERSION 0
#endif
#if defined(__ATTRIBUTE_IMPLEMENTED) || defined(__GNUC__)
/*
* analogous to lint's PRINTFLIKEn
*/
#define __sun_attr___PRINTFLIKE__(__n) \
__attribute__((__format__(printf, __n, (__n)+1)))
#define __sun_attr___VPRINTFLIKE__(__n) \
__attribute__((__format__(printf, __n, 0)))
/*
* Handle the kernel printf routines that can take '%b' too
*/
#if __GNUC_VERSION < 30402
/*
* XX64 at least this doesn't work correctly yet with 3.4.1 anyway!
*/
#define __sun_attr___KPRINTFLIKE__ __sun_attr___PRINTFLIKE__
#define __sun_attr___KVPRINTFLIKE__ __sun_attr___VPRINTFLIKE__
#else
#define __sun_attr___KPRINTFLIKE__(__n) \
__attribute__((__format__(cmn_err, __n, (__n)+1)))
#define __sun_attr___KVPRINTFLIKE__(__n) \
__attribute__((__format__(cmn_err, __n, 0)))
#endif
/*
* This one's pretty obvious -- the function never returns
*/
#define __sun_attr___noreturn__ __attribute__((__noreturn__))
/*
* This is an appropriate label for functions that do not
* modify their arguments, e.g. strlen()
*/
#define __sun_attr___pure__ __attribute__((__pure__))
/*
* This is a stronger form of __pure__. Can be used for functions
* that do not modify their arguments and don't depend on global
* memory.
*/
#define __sun_attr___const__ __attribute__((__const__))
/*
* structure packing like #pragma pack(1)
*/
#define __sun_attr___packed__ __attribute__((__packed__))
#define ___sun_attr_inner(__a) __sun_attr_##__a
#define __sun_attr__(__a) ___sun_attr_inner __a
#else /* __ATTRIBUTE_IMPLEMENTED || __GNUC__ */
#define __sun_attr__(__a)
#endif /* __ATTRIBUTE_IMPLEMENTED || __GNUC__ */
/*
* Shorthand versions for readability
*/
#define __PRINTFLIKE(__n) __sun_attr__((__PRINTFLIKE__(__n)))
#define __VPRINTFLIKE(__n) __sun_attr__((__VPRINTFLIKE__(__n)))
#define __KPRINTFLIKE(__n) __sun_attr__((__KPRINTFLIKE__(__n)))
#define __KVPRINTFLIKE(__n) __sun_attr__((__KVPRINTFLIKE__(__n)))
#ifdef _KERNEL
#define __NORETURN __sun_attr__((__noreturn__))
#endif
#define __CONST __sun_attr__((__const__))
#define __PURE __sun_attr__((__pure__))
#if defined(INVARIANTS) && !defined(ZFS_DEBUG)
#define ZFS_DEBUG
#undef NDEBUG
#endif
#define EXPORT_SYMBOL(x)
#define MODULE_AUTHOR(s)
#define MODULE_DESCRIPTION(s)
#define MODULE_LICENSE(s)
#define module_param(a, b, c)
#define module_param_call(a, b, c, d, e)
#define module_param_named(a, b, c, d)
#define MODULE_PARM_DESC(a, b)
#define asm __asm
#ifdef ZFS_DEBUG
#undef NDEBUG
#endif
#if !defined(ZFS_DEBUG) && !defined(NDEBUG)
#define NDEBUG
#endif
#ifndef EINTEGRITY
#define EINTEGRITY 97 /* EINTEGRITY is new in 13 */
#endif
/*
* These are bespoke errnos used in ZFS. We map them to their closest FreeBSD
* equivalents. This gives us more useful error messages from strerror(3).
*/
#define ECKSUM EINTEGRITY
#define EFRAGS ENOSPC
/* Similar for ENOACTIVE */
#define ENOTACTIVE ECANCELED
#define EREMOTEIO EREMOTE
#define ECHRNG ENXIO
#define ETIME ETIMEDOUT
#define O_LARGEFILE 0
#define O_RSYNC 0
#define O_DSYNC 0
#ifndef LOCORE
#ifndef HAVE_RPC_TYPES
typedef int bool_t;
typedef int enum_t;
#endif
#endif
#ifndef __cplusplus
#define __init
#define __exit
#endif
#ifdef _KERNEL
#define param_set_charp(a, b) (0)
#define ATTR_UID AT_UID
#define ATTR_GID AT_GID
#define ATTR_MODE AT_MODE
#define ATTR_XVATTR AT_XVATTR
#define ATTR_CTIME AT_CTIME
#define ATTR_MTIME AT_MTIME
#define ATTR_ATIME AT_ATIME
#define vmem_free zfs_kmem_free
#define vmem_zalloc(size, flags) zfs_kmem_alloc(size, flags | M_ZERO)
#define vmem_alloc zfs_kmem_alloc
#define MUTEX_NOLOCKDEP 0
#define RW_NOLOCKDEP 0
#else
#define FALSE 0
#define TRUE 1
/*
* XXX We really need to consolidate on standard
* error codes in the common code
*/
#define ENOSTR ENOTCONN
#define ENODATA EINVAL
#define __BSD_VISIBLE 1
#ifndef IN_BASE
#define __POSIX_VISIBLE 201808
#define __XSI_VISIBLE 1000
#endif
#define ARRAY_SIZE(a) (sizeof (a) / sizeof (a[0]))
#define mmap64 mmap
/* Note: this file can be used on linux/macOS when bootstrapping tools. */
#if defined(__FreeBSD__)
#define open64 open
#define pwrite64 pwrite
#define ftruncate64 ftruncate
#define lseek64 lseek
#define pread64 pread
#define stat64 stat
#define lstat64 lstat
#define statfs64 statfs
#define readdir64 readdir
#define dirent64 dirent
#endif
#define P2ALIGN(x, align) ((x) & -(align))
#define P2CROSS(x, y, align) (((x) ^ (y)) > (align) - 1)
#define P2ROUNDUP(x, align) ((((x) - 1) | ((align) - 1)) + 1)
#define P2PHASE(x, align) ((x) & ((align) - 1))
#define P2NPHASE(x, align) (-(x) & ((align) - 1))
#define ISP2(x) (((x) & ((x) - 1)) == 0)
#define IS_P2ALIGNED(v, a) ((((uintptr_t)(v)) & ((uintptr_t)(a) - 1)) == 0)
#define P2BOUNDARY(off, len, align) \
(((off) ^ ((off) + (len) - 1)) > (align) - 1)
/*
* Typed version of the P2* macros. These macros should be used to ensure
* that the result is correctly calculated based on the data type of (x),
* which is passed in as the last argument, regardless of the data
* type of the alignment. For example, if (x) is of type uint64_t,
* and we want to round it up to a page boundary using "PAGESIZE" as
* the alignment, we can do either
*
* P2ROUNDUP(x, (uint64_t)PAGESIZE)
* or
* P2ROUNDUP_TYPED(x, PAGESIZE, uint64_t)
*/
#define P2ALIGN_TYPED(x, align, type) \
((type)(x) & -(type)(align))
#define P2PHASE_TYPED(x, align, type) \
((type)(x) & ((type)(align) - 1))
#define P2NPHASE_TYPED(x, align, type) \
(-(type)(x) & ((type)(align) - 1))
#define P2ROUNDUP_TYPED(x, align, type) \
((((type)(x) - 1) | ((type)(align) - 1)) + 1)
#define P2END_TYPED(x, align, type) \
(-(~(type)(x) & -(type)(align)))
#define P2PHASEUP_TYPED(x, align, phase, type) \
((type)(phase) - (((type)(phase) - (type)(x)) & -(type)(align)))
#define P2CROSS_TYPED(x, y, align, type) \
(((type)(x) ^ (type)(y)) > (type)(align) - 1)
#define P2SAMEHIGHBIT_TYPED(x, y, type) \
(((type)(x) ^ (type)(y)) < ((type)(x) & (type)(y)))
#define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
#define RLIM64_INFINITY RLIM_INFINITY
#ifndef HAVE_ERESTART
#define ERESTART EAGAIN
#endif
#define ABS(a) ((a) < 0 ? -(a) : (a))
#endif
#ifdef __cplusplus
}
#endif
#endif /* _SYS_CCOMPILE_H */