xref: /openbsd/sys/sys/kcov.h (revision da19784a)
1 /*	$OpenBSD: kcov.h,v 1.9 2023/07/29 06:52:08 anton Exp $	*/
2 
3 /*
4  * Copyright (c) 2018 Anton Lindqvist <anton@openbsd.org>
5  *
6  * Permission to use, copy, modify, and distribute this software for any
7  * purpose with or without fee is hereby granted, provided that the above
8  * copyright notice and this permission notice appear in all copies.
9  *
10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17  */
18 
19 #ifndef _SYS_KCOV_H_
20 #define _SYS_KCOV_H_
21 
22 #include <sys/ioccom.h>
23 
24 #define KIOSETBUFSIZE	_IOW('K', 1, unsigned long)
25 #define KIOENABLE	_IOW('K', 2, int)
26 #define KIODISABLE	_IO('K', 3)
27 #define KIOREMOTEATTACH	_IOW('K', 4, struct kio_remote_attach *)
28 
29 #define KCOV_MODE_NONE		0
30 #define KCOV_MODE_TRACE_PC	1
31 #define KCOV_MODE_TRACE_CMP	2
32 
33 #define KCOV_REMOTE_COMMON	0
34 
35 struct kio_remote_attach {
36 	int subsystem;
37 	int id;
38 };
39 
40 #ifdef _KERNEL
41 
42 struct proc;
43 
44 extern int kcov_cold;
45 
46 void kcov_exit(struct proc *);
47 int kcov_vnode(struct vnode *);
48 void kcov_remote_register(int, void *);
49 void kcov_remote_unregister(int, void *);
50 void kcov_remote_enter(int, void *);
51 void kcov_remote_leave(int, void *);
52 
53 #endif /* _KERNEL */
54 
55 #endif /* !_SYS_KCOV_H_ */
56