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The C and C++ Include Header Files

/usr/include/x86_64-linux-gnu/sys/personality.h


$ cat -n /usr/include/x86_64-linux-gnu/sys/personality.h

     1	/* Copyright (C) 2002-2024 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 */