sysdeps/unix/sysv/linux/sys/personality.h

   1 /* Copyright (C) 2002-2014 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    <http://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     ADDR_NO_RANDOMIZE = 0x0040000,
  30     MMAP_PAGE_ZERO = 0x0100000,
  31     ADDR_COMPAT_LAYOUT = 0x0200000,
  32     READ_IMPLIES_EXEC = 0x0400000,
  33     ADDR_LIMIT_32BIT = 0x0800000,
  34     SHORT_INODE = 0x1000000,
  35     WHOLE_SECONDS = 0x2000000,
  36     STICKY_TIMEOUTS = 0x4000000,
  37     ADDR_LIMIT_3GB =    0x8000000
  38   };
  39
  40 /* Personality types.
  41
  42    These go in the low byte.  Avoid using the top bit, it will
  43    conflict with error returns.  */
  44 enum
  45   {
  46     PER_LINUX = 0x0000,
  47     PER_LINUX_32BIT = 0x0000 | ADDR_LIMIT_32BIT,
  48     PER_SVR4 = 0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
  49     PER_SVR3 = 0x0002 | STICKY_TIMEOUTS | SHORT_INODE,
  50     PER_SCOSVR3 = 0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS | SHORT_INODE,
  51     PER_OSR5 = 0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS,
  52     PER_WYSEV386 = 0x0004 | STICKY_TIMEOUTS | SHORT_INODE,
  53     PER_ISCR4 = 0x0005 | STICKY_TIMEOUTS,
  54     PER_BSD = 0x0006,
  55     PER_SUNOS = 0x0006 | STICKY_TIMEOUTS,
  56     PER_XENIX = 0x0007 | STICKY_TIMEOUTS | SHORT_INODE,
  57     PER_LINUX32 = 0x0008,
  58     PER_LINUX32_3GB = 0x0008 | ADDR_LIMIT_3GB,
  59     PER_IRIX32 = 0x0009 | STICKY_TIMEOUTS,      /* IRIX5 32-bit */
  60     PER_IRIXN32 = 0x000a | STICKY_TIMEOUTS,     /* IRIX6 new 32-bit */
  61     PER_IRIX64 = 0x000b | STICKY_TIMEOUTS,      /* IRIX6 64-bit */
  62     PER_RISCOS = 0x000c,
  63     PER_SOLARIS = 0x000d | STICKY_TIMEOUTS,
  64     PER_UW7 = 0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
  65     PER_OSF4 = 0x000f,
  66     PER_HPUX = 0x0010,
  67     PER_MASK = 0x00ff,
  68   };
  69
  70 __BEGIN_DECLS
  71
  72 /* Set different ABIs (personalities).  */
  73 extern int personality (unsigned long int __persona) __THROW;
  74
  75 __END_DECLS
  76
  77 #endif /* sys/personality.h */