/* * 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 #include #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 */