glibc (2.38)
1 /* Copyright (C) 2002-2023 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18 /* Taken verbatim from Linux 2.6 (include/linux/personality.h). */
19
20 #ifndef _SYS_PERSONALITY_H
21 #define _SYS_PERSONALITY_H 1
22
23 #include <features.h>
24
25 /* Flags for bug emulation.
26 These occupy the top three bytes. */
27 enum
28 {
29 UNAME26 = 0x0020000,
30 ADDR_NO_RANDOMIZE = 0x0040000,
31 FDPIC_FUNCPTRS = 0x0080000,
32 MMAP_PAGE_ZERO = 0x0100000,
33 ADDR_COMPAT_LAYOUT = 0x0200000,
34 READ_IMPLIES_EXEC = 0x0400000,
35 ADDR_LIMIT_32BIT = 0x0800000,
36 SHORT_INODE = 0x1000000,
37 WHOLE_SECONDS = 0x2000000,
38 STICKY_TIMEOUTS = 0x4000000,
39 ADDR_LIMIT_3GB = 0x8000000
40 };
41
42 /* Personality types.
43
44 These go in the low byte. Avoid using the top bit, it will
45 conflict with error returns. */
46 enum
47 {
48 PER_LINUX = 0x0000,
49 PER_LINUX_32BIT = 0x0000 | ADDR_LIMIT_32BIT,
50 PER_LINUX_FDPIC = 0x0000 | FDPIC_FUNCPTRS,
51 PER_SVR4 = 0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
52 PER_SVR3 = 0x0002 | STICKY_TIMEOUTS | SHORT_INODE,
53 PER_SCOSVR3 = 0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS | SHORT_INODE,
54 PER_OSR5 = 0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS,
55 PER_WYSEV386 = 0x0004 | STICKY_TIMEOUTS | SHORT_INODE,
56 PER_ISCR4 = 0x0005 | STICKY_TIMEOUTS,
57 PER_BSD = 0x0006,
58 PER_SUNOS = 0x0006 | STICKY_TIMEOUTS,
59 PER_XENIX = 0x0007 | STICKY_TIMEOUTS | SHORT_INODE,
60 PER_LINUX32 = 0x0008,
61 PER_LINUX32_3GB = 0x0008 | ADDR_LIMIT_3GB,
62 PER_IRIX32 = 0x0009 | STICKY_TIMEOUTS, /* IRIX5 32-bit */
63 PER_IRIXN32 = 0x000a | STICKY_TIMEOUTS, /* IRIX6 new 32-bit */
64 PER_IRIX64 = 0x000b | STICKY_TIMEOUTS, /* IRIX6 64-bit */
65 PER_RISCOS = 0x000c,
66 PER_SOLARIS = 0x000d | STICKY_TIMEOUTS,
67 PER_UW7 = 0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
68 PER_OSF4 = 0x000f,
69 PER_HPUX = 0x0010,
70 PER_MASK = 0x00ff,
71 };
72
73 __BEGIN_DECLS
74
75 /* Set different ABIs (personalities). */
76 extern int personality (unsigned long int __persona) __THROW;
77
78 __END_DECLS
79
80 #endif /* sys/personality.h */
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