xref: /freebsd/sys/compat/linux/linux_misc.h (revision 7431dfd4580e850375fe5478d92ec770344db098)
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  * $FreeBSD$
29  */
30 
31 #ifndef _LINUX_MISC_H_
32 #define	_LINUX_MISC_H_
33 
34 /*
35  * Miscellaneous
36  */
37 #define	LINUX_NAME_MAX		255
38 #define	LINUX_MAX_UTSNAME	65
39 
40 #define	LINUX_CTL_MAXNAME	10
41 
42 /* defines for prctl */
43 #define	LINUX_PR_SET_PDEATHSIG  1	/* Second arg is a signal. */
44 #define	LINUX_PR_GET_PDEATHSIG  2	/*
45 					 * Second arg is a ptr to return the
46 					 * signal.
47 					 */
48 #define	LINUX_PR_GET_KEEPCAPS	7	/* Get drop capabilities on setuid */
49 #define	LINUX_PR_SET_KEEPCAPS	8	/* Set drop capabilities on setuid */
50 #define	LINUX_PR_SET_NAME	15	/* Set process name. */
51 #define	LINUX_PR_GET_NAME	16	/* Get process name. */
52 
53 #define	LINUX_MAX_COMM_LEN	16	/* Maximum length of the process name. */
54 
55 #define	LINUX_MREMAP_MAYMOVE	1
56 #define	LINUX_MREMAP_FIXED	2
57 
58 extern const char *linux_platform;
59 
60 /*
61  * Non-standard aux entry types used in Linux ELF binaries.
62  */
63 
64 #define	LINUX_AT_PLATFORM	15	/* String identifying CPU */
65 #define	LINUX_AT_HWCAP		16	/* CPU capabilities */
66 #define	LINUX_AT_CLKTCK		17	/* frequency at which times() increments */
67 #define	LINUX_AT_SECURE		23	/* secure mode boolean */
68 #define	LINUX_AT_BASE_PLATFORM	24	/* string identifying real platform, may
69 					 * differ from AT_PLATFORM.
70 					 */
71 #define	LINUX_AT_EXECFN		31	/* filename of program */
72 
73 /* Linux sets the i387 to extended precision. */
74 #if defined(__i386__) || defined(__amd64__)
75 #define	__LINUX_NPXCW__		0x37f
76 #endif
77 
78 #define	LINUX_CLONE_VM			0x00000100
79 #define	LINUX_CLONE_FS			0x00000200
80 #define	LINUX_CLONE_FILES		0x00000400
81 #define	LINUX_CLONE_SIGHAND		0x00000800
82 #define	LINUX_CLONE_PID			0x00001000	/* No longer exist in Linux */
83 #define	LINUX_CLONE_VFORK		0x00004000
84 #define	LINUX_CLONE_PARENT		0x00008000
85 #define	LINUX_CLONE_THREAD		0x00010000
86 #define	LINUX_CLONE_SETTLS		0x00080000
87 #define	LINUX_CLONE_PARENT_SETTID	0x00100000
88 #define	LINUX_CLONE_CHILD_CLEARTID	0x00200000
89 #define	LINUX_CLONE_CHILD_SETTID	0x01000000
90 
91 #define	LINUX_THREADING_FLAGS					\
92 	(LINUX_CLONE_VM | LINUX_CLONE_FS | LINUX_CLONE_FILES |	\
93 	LINUX_CLONE_SIGHAND | LINUX_CLONE_THREAD)
94 
95 /* Scheduling policies */
96 #define	LINUX_SCHED_OTHER	0
97 #define	LINUX_SCHED_FIFO	1
98 #define	LINUX_SCHED_RR		2
99 
100 struct l_new_utsname {
101 	char	sysname[LINUX_MAX_UTSNAME];
102 	char	nodename[LINUX_MAX_UTSNAME];
103 	char	release[LINUX_MAX_UTSNAME];
104 	char	version[LINUX_MAX_UTSNAME];
105 	char	machine[LINUX_MAX_UTSNAME];
106 	char	domainname[LINUX_MAX_UTSNAME];
107 };
108 
109 #define	LINUX_CLOCK_REALTIME		0
110 #define	LINUX_CLOCK_MONOTONIC		1
111 #define	LINUX_CLOCK_PROCESS_CPUTIME_ID	2
112 #define	LINUX_CLOCK_THREAD_CPUTIME_ID	3
113 #define	LINUX_CLOCK_REALTIME_HR		4
114 #define	LINUX_CLOCK_MONOTONIC_HR	5
115 
116 extern int stclohz;
117 
118 #define __WCLONE 0x80000000
119 
120 int linux_common_wait(struct thread *td, int pid, int *status,
121 			int options, struct rusage *ru);
122 int linux_set_upcall_kse(struct thread *td, register_t stack);
123 int linux_set_cloned_tls(struct thread *td, void *desc);
124 
125 #endif	/* _LINUX_MISC_H_ */
126