1 #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
19 /* Get/set whether or not to drop capabilities on setuid() away from
20 * uid 0 (as per security/commoncap.c) */
21 #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
56 /* 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
63 /* Get/set process seccomp mode */
64 #define PR_GET_SECCOMP 21
65 #define PR_SET_SECCOMP 22
66
67 /* Get/set the capability bounding set (as per security/commoncap.c) */
68 #define PR_CAPBSET_READ 23
69 #define PR_CAPBSET_DROP 24
70
71 /* 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
77 /* Get/set securebits (as per security/commoncap.c) */
78 #define PR_GET_SECUREBITS 27
79 #define PR_SET_SECUREBITS 28
80
81 /*
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
88 #define PR_TASK_PERF_COUNTERS_DISABLE 31
89 #define PR_TASK_PERF_COUNTERS_ENABLE 32
90
91 #endif /* _LINUX_PRCTL_H */
92
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