linux_misc.h revision 293535
1/*-
2 * Copyright (c) 2006 Roman Divacky
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 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer
10 *    in this position and unchanged.
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 * 3. The name of the author may not be used to endorse or promote products
15 *    derived from this software without specific prior written permission
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $FreeBSD: stable/10/sys/compat/linux/linux_misc.h 293535 2016-01-09 16:24:30Z dchagin $
29 */
30
31#ifndef _LINUX_MISC_H_
32#define	_LINUX_MISC_H_
33
34#include <sys/sysctl.h>
35
36/*
37 * Miscellaneous
38 */
39#define	LINUX_NAME_MAX		255
40#define	LINUX_MAX_UTSNAME	65
41
42#define	LINUX_CTL_MAXNAME	10
43
44/* defines for prctl */
45#define	LINUX_PR_SET_PDEATHSIG  1	/* Second arg is a signal. */
46#define	LINUX_PR_GET_PDEATHSIG  2	/*
47					 * Second arg is a ptr to return the
48					 * signal.
49					 */
50#define	LINUX_PR_GET_KEEPCAPS	7	/* Get drop capabilities on setuid */
51#define	LINUX_PR_SET_KEEPCAPS	8	/* Set drop capabilities on setuid */
52#define	LINUX_PR_SET_NAME	15	/* Set process name. */
53#define	LINUX_PR_GET_NAME	16	/* Get process name. */
54
55#define	LINUX_MAX_COMM_LEN	16	/* Maximum length of the process name. */
56
57#define	LINUX_MREMAP_MAYMOVE	1
58#define	LINUX_MREMAP_FIXED	2
59
60extern const char *linux_kplatform;
61
62/*
63 * Non-standard aux entry types used in Linux ELF binaries.
64 */
65
66#define	LINUX_AT_PLATFORM	15	/* String identifying CPU */
67#define	LINUX_AT_HWCAP		16	/* CPU capabilities */
68#define	LINUX_AT_CLKTCK		17	/* frequency at which times() increments */
69#define	LINUX_AT_SECURE		23	/* secure mode boolean */
70#define	LINUX_AT_BASE_PLATFORM	24	/* string identifying real platform, may
71					 * differ from AT_PLATFORM.
72					 */
73#define	LINUX_AT_RANDOM		25	/* address of random bytes */
74#define	LINUX_AT_EXECFN		31	/* filename of program */
75#define	LINUX_AT_SYSINFO	32	/* vsyscall */
76#define	LINUX_AT_SYSINFO_EHDR	33	/* vdso header */
77
78#define	LINUX_AT_RANDOM_LEN	16	/* size of random bytes */
79
80/* Linux sets the i387 to extended precision. */
81#if defined(__i386__) || defined(__amd64__)
82#define	__LINUX_NPXCW__		0x37f
83#endif
84
85#define	LINUX_CLONE_VM			0x00000100
86#define	LINUX_CLONE_FS			0x00000200
87#define	LINUX_CLONE_FILES		0x00000400
88#define	LINUX_CLONE_SIGHAND		0x00000800
89#define	LINUX_CLONE_PID			0x00001000	/* No longer exist in Linux */
90#define	LINUX_CLONE_VFORK		0x00004000
91#define	LINUX_CLONE_PARENT		0x00008000
92#define	LINUX_CLONE_THREAD		0x00010000
93#define	LINUX_CLONE_SETTLS		0x00080000
94#define	LINUX_CLONE_PARENT_SETTID	0x00100000
95#define	LINUX_CLONE_CHILD_CLEARTID	0x00200000
96#define	LINUX_CLONE_CHILD_SETTID	0x01000000
97
98/* Scheduling policies */
99#define	LINUX_SCHED_OTHER	0
100#define	LINUX_SCHED_FIFO	1
101#define	LINUX_SCHED_RR		2
102
103struct l_new_utsname {
104	char	sysname[LINUX_MAX_UTSNAME];
105	char	nodename[LINUX_MAX_UTSNAME];
106	char	release[LINUX_MAX_UTSNAME];
107	char	version[LINUX_MAX_UTSNAME];
108	char	machine[LINUX_MAX_UTSNAME];
109	char	domainname[LINUX_MAX_UTSNAME];
110};
111
112#define	LINUX_CLOCK_REALTIME		0
113#define	LINUX_CLOCK_MONOTONIC		1
114#define	LINUX_CLOCK_PROCESS_CPUTIME_ID	2
115#define	LINUX_CLOCK_THREAD_CPUTIME_ID	3
116#define	LINUX_CLOCK_REALTIME_HR		4
117#define	LINUX_CLOCK_MONOTONIC_HR	5
118
119extern int stclohz;
120
121#define	LINUX_WNOHANG		0x00000001
122#define	LINUX_WUNTRACED		0x00000002
123#define	LINUX_WSTOPPED		LINUX_WUNTRACED
124#define	LINUX_WEXITED		0x00000004
125#define	LINUX_WCONTINUED	0x00000008
126#define	LINUX_WNOWAIT		0x01000000
127
128
129#define	__WNOTHREAD		0x20000000
130#define	__WALL			0x40000000
131#define	__WCLONE		0x80000000
132
133/* Linux waitid idtype  */
134#define	LINUX_P_ALL		0
135#define	LINUX_P_PID		1
136#define	LINUX_P_PGID		2
137
138#define	LINUX_RLIM_INFINITY	(~0UL)
139
140int linux_common_wait(struct thread *td, int pid, int *status,
141			int options, struct rusage *ru);
142void linux_to_bsd_waitopts(int options, int *bsdopts);
143int linux_set_upcall_kse(struct thread *td, register_t stack);
144int linux_set_cloned_tls(struct thread *td, void *desc);
145struct thread	*linux_tdfind(struct thread *, lwpid_t, pid_t);
146
147int linux_sysctl_debug(SYSCTL_HANDLER_ARGS);
148
149#endif	/* _LINUX_MISC_H_ */
150