summaryrefslogtreecommitdiff
path: root/sys/lib/libkern/libkern.h
blob: db020a8ed0395c932fa3924869e93299adb80dcb (plain)
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
/*	$OpenBSD: libkern.h,v 1.35 2018/04/25 11:15:58 dlg Exp $	*/
/*	$NetBSD: libkern.h,v 1.7 1996/03/14 18:52:08 christos Exp $	*/

/*-
 * Copyright (c) 1992, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)libkern.h	8.1 (Berkeley) 6/10/93
 */

#ifndef __LIBKERN_H__
#define __LIBKERN_H__

#include <sys/types.h>

#ifndef LIBKERN_INLINE
#define LIBKERN_INLINE	static __inline
#define LIBKERN_BODY
#endif


LIBKERN_INLINE int imax(int, int);
LIBKERN_INLINE int imin(int, int);
LIBKERN_INLINE u_int max(u_int, u_int);
LIBKERN_INLINE u_int min(u_int, u_int);
LIBKERN_INLINE long lmax(long, long);
LIBKERN_INLINE long lmin(long, long);
LIBKERN_INLINE u_long ulmax(u_long, u_long);
LIBKERN_INLINE u_long ulmin(u_long, u_long);
LIBKERN_INLINE int abs(int);

#ifdef LIBKERN_BODY
LIBKERN_INLINE int
imax(int a, int b)
{
	return (a > b ? a : b);
}
LIBKERN_INLINE int
imin(int a, int b)
{
	return (a < b ? a : b);
}
LIBKERN_INLINE long
lmax(long a, long b)
{
	return (a > b ? a : b);
}
LIBKERN_INLINE long
lmin(long a, long b)
{
	return (a < b ? a : b);
}
LIBKERN_INLINE u_int
max(u_int a, u_int b)
{
	return (a > b ? a : b);
}
LIBKERN_INLINE u_int
min(u_int a, u_int b)
{
	return (a < b ? a : b);
}
LIBKERN_INLINE u_long
ulmax(u_long a, u_long b)
{
	return (a > b ? a : b);
}
LIBKERN_INLINE u_long
ulmin(u_long a, u_long b)
{
	return (a < b ? a : b);
}

LIBKERN_INLINE int
abs(int j)
{
	return(j < 0 ? -j : j);
}
#endif

#ifdef NDEBUG						/* tradition! */
#define	assert(e)	((void)0)
#else
#ifdef __STDC__
#define	assert(e)	((e) ? (void)0 :				    \
			    __assert("", __FILE__, __LINE__, #e))
#else
#define	assert(e)	((e) ? (void)0 :				    \
			    __assert("", __FILE__, __LINE__, "e"))
#endif
#endif

#define	__KASSERTSTR	"kernel %sassertion \"%s\" failed: file \"%s\", line %d"

#ifndef DIAGNOSTIC
#define	KASSERTMSG(e, msg, ...)	((void)0)
#define	KASSERT(e)	((void)0)
#else
#ifdef __STDC__
#define	KASSERTMSG(e, msg, ...)	((e) ? (void)0 :			    \
			    panic(__KASSERTSTR " " msg, "diagnostic ", #e,  \
			    __FILE__, __LINE__, ## __VA_ARGS__))
#define	KASSERT(e)	((e) ? (void)0 :				    \
			    __assert("diagnostic ", __FILE__, __LINE__, #e))
#else
#define	KASSERTMSG(e, msg, ...)	((e) ? (void)0 :			    \
			    panic(__KASSERTSTR " " msg, "diagnostic ", "e", \
			    __FILE__, __LINE__, ## __VA_ARGS__))
#define	KASSERT(e)	((e) ? (void)0 :				    \
			    __assert("diagnostic ", __FILE__, __LINE__, "e"))
#endif
#endif

#ifndef DEBUG
#define	KDASSERTMSG(e, msg, ...)	((void)0)
#define	KDASSERT(e)	((void)0)
#else
#ifdef __STDC__
#define	KDASSERTMSG(e, msg, ...)	((e) ? (void)0 :		    \
			    panic(__KASSERTSTR " " msg, "debugging ", #e,   \
			    __FILE__, __LINE__, ## __VA_ARGS__))
#define	KDASSERT(e)	((e) ? (void)0 :				    \
			    __assert("debugging ", __FILE__, __LINE__, #e))
#else
#define	KDASSERTMSG(e, msg, ...)	((e) ? (void)0 :		    \
			    panic(__KASSERTSTR " " msg, "debugging ", "e",  \
			    __FILE__, __LINE__, ## __VA_ARGS__))
#define	KDASSERT(e)	((e) ? (void)0 :				    \
			    __assert("debugging ", __FILE__, __LINE__, "e"))
#endif
#endif

#define	CTASSERT(x)	extern char  _ctassert[(x) ? 1 : -1 ]	\
			    __attribute__((__unused__))

/* Prototypes for non-quad routines. */
void	 __assert(const char *, const char *, int, const char *)
	    __attribute__ ((__noreturn__));
int	 bcmp(const void *, const void *, size_t);
void	 bzero(void *, size_t);
void	 explicit_bzero(void *, size_t);
int	 ffs(int);
int	 fls(int);
int	 flsl(long);
void	*memchr(const void *, int, size_t);
int	 memcmp(const void *, const void *, size_t);
void	*memset(void *, int c, size_t len);
u_int32_t random(void);
int	 scanc(u_int, const u_char *, const u_char [], int);
int	 skpc(int, size_t, u_char *);
size_t	 strlen(const char *);
char	*strncpy(char *, const char *, size_t)
		__attribute__ ((__bounded__(__string__,1,3)));
size_t	 strnlen(const char *, size_t);
size_t	 strlcpy(char *, const char *, size_t)
		__attribute__ ((__bounded__(__string__,1,3)));
size_t	 strlcat(char *, const char *, size_t)
		__attribute__ ((__bounded__(__string__,1,3)));
int	 strcmp(const char *, const char *);
int	 strncmp(const char *, const char *, size_t);
int	 strncasecmp(const char *, const char *, size_t);
size_t	 getsn(char *, size_t)
		__attribute__ ((__bounded__(__string__,1,2)));
char	*strchr(const char *, int);
char	*strrchr(const char *, int);
int	 timingsafe_bcmp(const void *, const void *, size_t);

#endif /* __LIBKERN_H__ */