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

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/*
* 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(ZFS_DEBUG) || !defined(NDEBUG))&& !defined(DEBUG)
#define DEBUG
#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
#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
#define KMALLOC_MAX_SIZE MAXPHYS
#ifdef _KERNEL
#if !defined(LOCORE) && !defined(_ASM)
typedef unsigned long long u_longlong_t;
typedef long long longlong_t;
typedef void zfs_kernel_param_t;
#endif
#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
#if !defined(LOCORE) && !defined(_ASM)
#include <sys/param.h>
#include <linux/types.h>
#if __FreeBSD_version < 1300051
#define vm_page_valid(m) (m)->valid = VM_PAGE_BITS_ALL
#define vm_page_do_sunbusy(m)
#define vm_page_none_valid(m) ((m)->valid == 0)
#else
#define vm_page_do_sunbusy(m) vm_page_sunbusy(m)
#endif
#if __FreeBSD_version < 1300074
#define VOP_UNLOCK1(x) VOP_UNLOCK(x, 0)
#else
#define VOP_UNLOCK1(x) VOP_UNLOCK(x)
#endif
#if __FreeBSD_version < 1300064
#define VN_IS_DOOMED(vp) ((vp)->v_iflag & VI_DOOMED)
#endif
#if __FreeBSD_version < 1300068
#define VFS_VOP_VECTOR_REGISTER(x)
#endif
#if __FreeBSD_version >= 1300076
#define getnewvnode_reserve_() getnewvnode_reserve()
#else
#define getnewvnode_reserve_() getnewvnode_reserve(1)
#endif
struct hlist_node {
struct hlist_node *next, **pprev;
};
struct hlist_head {
struct hlist_node *first;
};
typedef struct {
volatile int counter;
} atomic_t;
/* BEGIN CSTYLED */
#define hlist_for_each(p, head) \
for (p = (head)->first; p; p = (p)->next)
#define hlist_entry(ptr, type, field) container_of(ptr, type, field)
#define container_of(ptr, type, member) \
({ \
const __typeof(((type *)0)->member) *__p = (ptr); \
(type *)((uintptr_t)__p - offsetof(type, member)); \
})
/* END CSTYLED */
static inline void
hlist_add_head(struct hlist_node *n, struct hlist_head *h)
{
n->next = h->first;
if (h->first != NULL)
h->first->pprev = &n->next;
WRITE_ONCE(h->first, n);
n->pprev = &h->first;
}
static inline void
hlist_del(struct hlist_node *n)
{
WRITE_ONCE(*(n->pprev), n->next);
if (n->next != NULL)
n->next->pprev = n->pprev;
}
/* BEGIN CSTYLED */
#define READ_ONCE(x) ({ \
__typeof(x) __var = ({ \
barrier(); \
ACCESS_ONCE(x); \
}); \
barrier(); \
__var; \
})
#define HLIST_HEAD_INIT { }
#define HLIST_HEAD(name) struct hlist_head name = HLIST_HEAD_INIT
#define INIT_HLIST_HEAD(head) (head)->first = NULL
#define INIT_HLIST_NODE(node) \
do { \
(node)->next = NULL; \
(node)->pprev = NULL; \
} while (0)
/* END CSTYLED */
static inline int
atomic_read(const atomic_t *v)
{
return (READ_ONCE(v->counter));
}
static inline int
atomic_inc(atomic_t *v)
{
return (atomic_fetchadd_int(&v->counter, 1) + 1);
}
static inline int
atomic_dec(atomic_t *v)
{
return (atomic_fetchadd_int(&v->counter, -1) - 1);
}
#endif
#else
typedef long loff_t;
typedef long rlim64_t;
typedef int bool_t;
typedef int enum_t;
#ifndef __cplusplus
#define __init
#endif
#define __exit
#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 __XSI_VISIBLE 1000
#define __BSD_VISIBLE 1
#define __POSIX_VISIBLE 201808
#define ARRAY_SIZE(a) (sizeof (a) / sizeof (a[0]))
#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
#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
#define ERESTART EAGAIN
#define ABS(a) ((a) < 0 ? -(a) : (a))
#endif
#ifdef __cplusplus
}
#endif
#endif /* _SYS_CCOMPILE_H */
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