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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef _LINUX_PRCTL_H
2#define _LINUX_PRCTL_H
3
4/* Values to pass as first argument to prctl() */
5
6#define PR_SET_PDEATHSIG 1 /* Second arg is a signal */
7#define PR_GET_PDEATHSIG 2 /* Second arg is a ptr to return the signal */
8
9/* Get/set current->mm->dumpable */
10#define PR_GET_DUMPABLE 3
11#define PR_SET_DUMPABLE 4
12
13/* Get/set unaligned access control bits (if meaningful) */
14#define PR_GET_UNALIGN 5
15#define PR_SET_UNALIGN 6
16# define PR_UNALIGN_NOPRINT 1 /* silently fix up unaligned user accesses */
17# define PR_UNALIGN_SIGBUS 2 /* generate SIGBUS on unaligned user access */
18
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -070019/* Get/set whether or not to drop capabilities on setuid() away from
20 * uid 0 (as per security/commoncap.c) */
Linus Torvalds1da177e2005-04-16 15:20:36 -070021#define PR_GET_KEEPCAPS 7
22#define PR_SET_KEEPCAPS 8
23
24/* Get/set floating-point emulation control bits (if meaningful) */
25#define PR_GET_FPEMU 9
26#define PR_SET_FPEMU 10
27# define PR_FPEMU_NOPRINT 1 /* silently emulate fp operations accesses */
28# define PR_FPEMU_SIGFPE 2 /* don't emulate fp operations, send SIGFPE instead */
29
30/* Get/set floating-point exception mode (if meaningful) */
31#define PR_GET_FPEXC 11
32#define PR_SET_FPEXC 12
33# define PR_FP_EXC_SW_ENABLE 0x80 /* Use FPEXC for FP exception enables */
34# define PR_FP_EXC_DIV 0x010000 /* floating point divide by zero */
35# define PR_FP_EXC_OVF 0x020000 /* floating point overflow */
36# define PR_FP_EXC_UND 0x040000 /* floating point underflow */
37# define PR_FP_EXC_RES 0x080000 /* floating point inexact result */
38# define PR_FP_EXC_INV 0x100000 /* floating point invalid operation */
39# define PR_FP_EXC_DISABLED 0 /* FP exceptions disabled */
40# define PR_FP_EXC_NONRECOV 1 /* async non-recoverable exc. mode */
41# define PR_FP_EXC_ASYNC 2 /* async recoverable exception mode */
42# define PR_FP_EXC_PRECISE 3 /* precise exception mode */
43
44/* Get/set whether we use statistical process timing or accurate timestamp
45 * based process timing */
46#define PR_GET_TIMING 13
47#define PR_SET_TIMING 14
48# define PR_TIMING_STATISTICAL 0 /* Normal, traditional,
49 statistical process timing */
50# define PR_TIMING_TIMESTAMP 1 /* Accurate timestamp based
51 process timing */
52
53#define PR_SET_NAME 15 /* Set process name */
54#define PR_GET_NAME 16 /* Get process name */
55
Anton Blanchard651d7652006-06-07 16:10:19 +100056/* Get/set process endian */
57#define PR_GET_ENDIAN 19
58#define PR_SET_ENDIAN 20
59# define PR_ENDIAN_BIG 0
60# define PR_ENDIAN_LITTLE 1 /* True little endian mode */
61# define PR_ENDIAN_PPC_LITTLE 2 /* "PowerPC" pseudo little endian */
62
Andrea Arcangeli1d9d02f2007-07-15 23:41:32 -070063/* Get/set process seccomp mode */
64#define PR_GET_SECCOMP 21
65#define PR_SET_SECCOMP 22
66
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -070067/* Get/set the capability bounding set (as per security/commoncap.c) */
Serge E. Hallyn3b7391d2008-02-04 22:29:45 -080068#define PR_CAPBSET_READ 23
69#define PR_CAPBSET_DROP 24
70
Erik Bosman8fb402b2008-04-11 18:54:17 +020071/* Get/set the process' ability to use the timestamp counter instruction */
72#define PR_GET_TSC 25
73#define PR_SET_TSC 26
74# define PR_TSC_ENABLE 1 /* allow the use of the timestamp counter */
75# define PR_TSC_SIGSEGV 2 /* throw a SIGSEGV instead of reading the TSC */
76
Andrew G. Morgan3898b1b2008-04-28 02:13:40 -070077/* Get/set securebits (as per security/commoncap.c) */
78#define PR_GET_SECUREBITS 27
79#define PR_SET_SECUREBITS 28
80
Arjan van de Ven69766752008-09-01 15:52:40 -070081/*
82 * Get/set the timerslack as used by poll/select/nanosleep
83 * A value of 0 means "use default"
84 */
85#define PR_SET_TIMERSLACK 29
86#define PR_GET_TIMERSLACK 30
87
Linus Torvalds1da177e2005-04-16 15:20:36 -070088#endif /* _LINUX_PRCTL_H */