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

   1 /* Copyright (C) 2002, 2007 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, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 /* Taken verbatim from Linux 2.6 (include/linux/personality.h).  */
  20
  21 #ifndef _SYS_PERSONALITY_H
  22 #define _SYS_PERSONALITY_H 1
  23
  24 #include <features.h>
  25
  26 /* Flags for bug emulation.
  27    These occupy the top three bytes.  */
  28 enum
  29   {
  30     ADDR_NO_RANDOMIZE = 0x0040000,
  31     MMAP_PAGE_ZERO = 0x0100000,
  32     ADDR_COMPAT_LAYOUT = 0x0200000,
  33     READ_IMPLIES_EXEC = 0x0400000,
  34     ADDR_LIMIT_32BIT = 0x0800000,
  35     SHORT_INODE = 0x1000000,
  36     WHOLE_SECONDS = 0x2000000,
  37     STICKY_TIMEOUTS = 0x4000000,
  38     ADDR_LIMIT_3GB =    0x8000000
  39   };
  40
  41 /* Personality types.
  42
  43    These go in the low byte.  Avoid using the top bit, it will
  44    conflict with error returns.  */
  45 enum
  46   {
  47     PER_LINUX = 0x0000,
  48     PER_LINUX_32BIT = 0x0000 | ADDR_LIMIT_32BIT,
  49     PER_SVR4 = 0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
  50     PER_SVR3 = 0x0002 | STICKY_TIMEOUTS | SHORT_INODE,
  51     PER_SCOSVR3 = 0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS | SHORT_INODE,
  52     PER_OSR5 = 0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS,
  53     PER_WYSEV386 = 0x0004 | STICKY_TIMEOUTS | SHORT_INODE,
  54     PER_ISCR4 = 0x0005 | STICKY_TIMEOUTS,
  55     PER_BSD = 0x0006,
  56     PER_SUNOS = 0x0006 | STICKY_TIMEOUTS,
  57     PER_XENIX = 0x0007 | STICKY_TIMEOUTS | SHORT_INODE,
  58     PER_LINUX32 = 0x0008,
  59     PER_LINUX32_3GB = 0x0008 | ADDR_LIMIT_3GB,
  60     PER_IRIX32 = 0x0009 | STICKY_TIMEOUTS,      /* IRIX5 32-bit */
  61     PER_IRIXN32 = 0x000a | STICKY_TIMEOUTS,     /* IRIX6 new 32-bit */
  62     PER_IRIX64 = 0x000b | STICKY_TIMEOUTS,      /* IRIX6 64-bit */
  63     PER_RISCOS = 0x000c,
  64     PER_SOLARIS = 0x000d | STICKY_TIMEOUTS,
  65     PER_UW7 = 0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
  66     PER_OSF4 = 0x000f,
  67     PER_HPUX = 0x0010,
  68     PER_MASK = 0x00ff,
  69   };
  70
  71 __BEGIN_DECLS
  72
  73 /* Set different ABIs (personalities).  */
  74 extern int personality (unsigned long int __persona) __THROW;
  75
  76 __END_DECLS
  77
  78 #endif /* sys/personality.h */