aboutsummaryrefslogtreecommitdiffstats
path: root/include/os/freebsd/spl/sys/ccompile.h
blob: bffe6d21e31df918946fa70d8c0edc8e9c3fb70e (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
/*
 * 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 */