xref: /freebsd/sys/sys/tslog.h (revision 95ee2897)
1 /*-
2  * Copyright (c) 2017 Colin Percival
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  */
26 
27 #ifndef _TSLOG_H_
28 #define	_TSLOG_H_
29 
30 #ifdef _KERNEL
31 #ifdef TSLOG
32 #include <sys/_types.h>
33 #include <sys/pcpu.h>
34 #endif
35 
36 #define TS_ENTER	0
37 #define TS_EXIT		1
38 #define TS_THREAD	2
39 #define TS_EVENT	3
40 
41 #define TSENTER() TSRAW(curthread, TS_ENTER, __func__, NULL)
42 #define TSENTER2(x) TSRAW(curthread, TS_ENTER, __func__, x)
43 #define TSEXIT() TSRAW(curthread, TS_EXIT, __func__, NULL)
44 #define TSEXIT2(x) TSRAW(curthread, TS_EXIT, __func__, x)
45 #define TSTHREAD(td, x) TSRAW(td, TS_THREAD, x, NULL)
46 #define TSEVENT(x) TSRAW(curthread, TS_EVENT, x, NULL)
47 #define TSEVENT2(x, y) TSRAW(curthread, TS_EVENT, x, y)
48 #define TSLINE() TSEVENT2(__FILE__, __XSTRING(__LINE__))
49 #define TSWAIT(x) TSEVENT2("WAIT", x);
50 #define TSUNWAIT(x) TSEVENT2("UNWAIT", x);
51 #define TSHOLD(x) TSEVENT2("HOLD", x);
52 #define TSRELEASE(x) TSEVENT2("RELEASE", x);
53 #define TSFORK(p, pp) TSRAW_USER(p, pp, NULL, NULL)
54 #define TSEXEC(p, name) TSRAW_USER(p, (pid_t)(-1), name, NULL)
55 #define TSNAMEI(p, name) TSRAW_USER(p, (pid_t)(-1), NULL, name)
56 #define TSPROCEXIT(p) TSRAW_USER(p, (pid_t)(-1), NULL, NULL)
57 
58 #ifdef TSLOG
59 #define TSRAW(a, b, c, d) tslog(a, b, c, d)
60 void tslog(void *, int, const char *, const char *);
61 #define TSRAW_USER(a, b, c, d) tslog_user(a, b, c, d)
62 void tslog_user(pid_t, pid_t, const char *, const char *);
63 #else
64 #define TSRAW(a, b, c, d)		/* Timestamp logging disabled */
65 #define TSRAW_USER(a, b, c, d)		/* Timestamp logging disabled */
66 #endif
67 
68 #endif /* _KERNEL */
69 #endif /* _TSLOG_H_ */
70